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CN119814264A - Time-frequency synchronization system and method based on HPLC and HRF dual-mode communication - Google Patents

Time-frequency synchronization system and method based on HPLC and HRF dual-mode communication Download PDF

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Publication number
CN119814264A
CN119814264A CN202411875664.2A CN202411875664A CN119814264A CN 119814264 A CN119814264 A CN 119814264A CN 202411875664 A CN202411875664 A CN 202411875664A CN 119814264 A CN119814264 A CN 119814264A
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synchronization
signal
hrf
hplc
module
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万尚军
朱俊强
周国祥
谢李丹
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Jiangsu Zhengtu Electric Technology Co ltd
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Jiangsu Zhengtu Electric Technology Co ltd
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    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

本发明涉及通信技术领域，具体涉及基于HPLC与HRF双模通信的时频同步系统和方法，包括多路径检测模块、同步补偿模块、双模融合模块、同步控制模块以及监控反馈模块；多路径检测模块：用于识别并量化多路径效应带来的同步误差；同步补偿模块：用于输出补偿后的同步信号；双模融合模块：用于输出融合后的同步信号；同步控制模块：用于接收补偿后的同步信号与融合后的同步信号，以协调HPLC通信模块与HRF通信模块的时频同步状态，输出控制指令。本发明，通过精确分析多路径效应并进行实时同步补偿与信号融合，有效提高了双模通信系统的时频同步精度、稳定性和传输效率，解决了多路径效应引起的同步误差问题。

The present invention relates to the field of communication technology, and in particular to a time-frequency synchronization system and method based on HPLC and HRF dual-mode communication, including a multipath detection module, a synchronization compensation module, a dual-mode fusion module, a synchronization control module, and a monitoring feedback module; the multipath detection module is used to identify and quantify the synchronization error caused by the multipath effect; the synchronization compensation module is used to output the compensated synchronization signal; the dual-mode fusion module is used to output the fused synchronization signal; the synchronization control module is used to receive the compensated synchronization signal and the fused synchronization signal to coordinate the time-frequency synchronization state of the HPLC communication module and the HRF communication module, and output a control instruction. The present invention effectively improves the time-frequency synchronization accuracy, stability, and transmission efficiency of the dual-mode communication system by accurately analyzing the multipath effect and performing real-time synchronization compensation and signal fusion, and solves the synchronization error problem caused by the multipath effect.

Description

Time-frequency synchronization system and method based on HPLC and HRF dual-mode communication
Technical Field
The invention relates to the technical field of communication, in particular to a time-frequency synchronization system and method based on HPLC and HRF dual-mode communication.
Background
With the continuous development of communication technology, especially in high-frequency communication and dual-mode communication systems, time-frequency synchronization has become an important link for ensuring signal transmission quality and system stability, the combination of high-frequency communication systems (such as HPLC communication modules) and wireless communication systems (such as HRF communication modules) has been widely applied to various complex communication scenes, such as internet of vehicles, internet of things and intelligent manufacturing, and the like, due to the fact that HPLC and HRF systems have different transmission characteristics and multipath effects in the signal transmission process, the time-frequency synchronization problems of the HPLC and the HRF systems are increasingly prominent, and the multipath effects can cause time delay, amplitude attenuation and phase offset of signals, so that synchronization accuracy and system stability face great challenges.
However, most of the existing time-frequency synchronization technologies depend on a single signal source or a simple synchronization method, so that the time-frequency synchronization problem in the dual-mode communication system cannot be effectively solved, the traditional time-frequency synchronization method often ignores the influence of multipath effects, so that synchronization error accumulation and transmission efficiency are low, in addition, the synchronization compensation algorithm in the prior art also focuses on adjustment of a single dimension, multiple requirements of time-frequency synchronization are difficult to be met, and dynamic adjustment capability of real-time feedback is lacked. Therefore, how to overcome the influence of multipath effect on synchronization accuracy and realize efficient and accurate time-frequency synchronization in a complex dual-mode communication environment is still a technical problem to be solved.
Disclosure of Invention
Based on the above objects, the present invention provides a time-frequency synchronization system and method based on HPLC and HRF dual-mode communication.
The time-frequency synchronization system based on HPLC and HRF dual-mode communication comprises a multi-path detection module, a synchronization compensation module, a dual-mode fusion module, a synchronization control module and a monitoring feedback module;
The multi-path detection module is used for receiving the synchronous signals of the HPLC communication module and the HRF communication module, identifying and quantifying the synchronous error caused by the multi-path effect by analyzing the arrival time difference, the amplitude attenuation and the phase change of the signals, and outputting multi-path error information;
the synchronization compensation module is used for receiving the multipath error information output by the multipath detection module, adjusting the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath error information, and outputting a compensated synchronization signal;
The dual-mode fusion module is used for receiving the synchronous signals from the HPLC communication module and the HRF communication module, adjusting the weights of the two signals to fuse based on the multipath error information provided by the multipath detection module, and outputting the fused synchronous signals;
the synchronous control module is connected with the synchronous compensation module and the dual-mode fusion module and is used for receiving the compensated synchronous signal and the fused synchronous signal to coordinate the time-frequency synchronous state of the HPLC communication module and the HRF communication module and output a control instruction;
And the monitoring feedback module is used for continuously monitoring the running state and the synchronous effect of the system and collecting real-time feedback data so as to be optimally adjusted by the multipath detection module and the synchronous compensation module.
Optionally, the multi-path detection module includes a synchronous signal receiving unit, a signal analysis unit and an error information generating unit, wherein:
The system comprises a synchronization signal receiving unit, a signal receiving interface, a phase locking loop circuit, a clock synchronization interface and a clock synchronization unit, wherein the synchronization signal receiving unit is used for simultaneously receiving synchronization signals from an HPLC communication module and an HRF communication module, and is configured with the clock synchronization interface and the signal receiving interface;
the signal analysis unit is used for analyzing the HPLC synchronous signal and the HRF synchronous signal received by the synchronous signal receiving unit;
the signal analysis unit specifically includes:
The arrival time difference analysis subunit is used for measuring the arrival time difference between the HPLC synchronous signal and the HRF synchronous signal and recording related data;
The amplitude attenuation analysis subunit is used for evaluating the amplitude attenuation of the synchronous signal caused by the multipath effect in the propagation process and generating attenuation parameters;
the phase change analysis subunit is used for detecting the phase change caused by the synchronous signal in the multipath propagation process and generating phase deviation data;
And the error information generating unit is used for calculating the synchronous error caused by the multipath effect based on the arrival time difference, the amplitude attenuation and the phase change data provided by the signal analyzing unit and outputting the multipath error information to the synchronous compensation module and the dual-mode fusion module.
Optionally, the amplitude attenuation analysis subunit specifically includes:
Measuring signal intensity, namely measuring signal intensity of the received HPLC synchronous signal and HRF synchronous signal;
acquiring standard signal strength, namely acquiring standard signal strength before transmission;
Calculating attenuation factors, namely calculating the attenuation factors of the HPLC synchronous signal and the HRF synchronous signal according to the following formula: Wherein, P received represents the signal intensity of the received HPLC synchronization signal and HRF synchronization signal, P transmitted represents the corresponding standard signal intensities P HPLC,0 and P HRF,0 before transmission, and alpha is the attenuation factor of the corresponding synchronization signal;
and generating an attenuation parameter, namely calculating and generating an amplitude attenuation parameter A according to the following multipath attenuation model formula by combining an attenuation factor and a signal propagation distance, wherein the formula is A=A 0+α·log10 (d), A is the attenuated signal amplitude, A 0 is the reference signal amplitude, alpha is the calculated attenuation factor, and d is the signal propagation distance.
Optionally, the phase change analysis subunit includes:
the synchronization signal preprocessing, namely filtering and denoising the received HPLC synchronization signal and HRF synchronization signal, and providing a clean data source for subsequent phase analysis;
calculating the phase, namely calculating the phase value of the signal according to the received synchronous signal, and calculating the phase change through the following formula: Wherein, In order to be the amount of phase change,For the phase of the received synchronization signal,Is the phase of the reference signal;
phase change detection based on calculated phase change amount Judging the phase shift caused by the synchronous signal in the multipath propagation process, and converting the phase shift into phase shift data, wherein the phase shift is detected by the following phase shift detection algorithm, and the formula is as follows: Wherein, As the amount of phase shift,The phase change quantity of the nth time point is N, and the number of sample points in the time window is N;
generating phase offset data, phase offset amount As phase offset data.
Optionally, the error information generating unit includes:
The arrival time difference data integration subunit is used for receiving the arrival time difference data provided by the signal analysis unit and calculating a time synchronization error delta t error caused by the multipath effect according to the following formula, wherein delta t error＝ΔtHRF-ΔtHPLC is the arrival time difference of the HRF communication signal, delta t HRF is the arrival time difference of the HPLC communication signal, and delta t error is the time synchronization error caused by the multipath effect;
The amplitude attenuation data integration subunit is used for receiving the amplitude attenuation data provided by the signal analysis subunit, setting the amplitude attenuation of the HRF signal as A HRF and the amplitude attenuation of the HPLC signal as A HPLC, and calculating an amplitude attenuation error A error caused by multipath effect;
a phase change data integration subunit for receiving the phase change data provided by the signal analysis subunit and setting the phase change amount of the HRF signal as And the phase change of the HPLC signal isAnd calculates the phase synchronization error
A combined error generation subunit for generating a time synchronization error Δt error, an amplitude attenuation error a error, and a phase synchronization errorIn combination, multipath synchronization error information is generated by the following weighted average algorithm: wherein E total is a multipath error, w t、wA and Weighting coefficients for time synchronization error, amplitude attenuation error and phase synchronization error, and satisfy
Optionally, the synchronization compensation module includes a parameter adjustment unit, a synchronization signal generation unit, and a control interface unit, where:
The parameter adjusting unit is used for receiving the multipath error information E total output by the error information generating unit and adjusting the time-frequency synchronous parameters of the HPLC communication module and the HRF communication module based on a synchronous parameter adjusting algorithm, and the formula is as follows: Wherein θ adjust is the adjustment amount of the synchronization parameter, t is the time variable, dt is the time increment, and K p、Ki and K d are the proportional coefficient, the integral coefficient and the differential coefficient respectively;
The synchronous signal generating unit is used for generating a compensated synchronous signal according to the adjustment quantity delta theta output by the parameter adjusting unit, and particularly, the synchronous signal is corrected through the following time-frequency adjustment formula: Wherein S original is the original synchronous signal, Is a phase adjustment factor;
And the control interface unit is used for transmitting the compensated synchronous signal S compensated output by the synchronous signal generating unit to the synchronous control module.
Optionally, the dual-mode fusion module includes a weight adjustment unit, a signal fusion unit, and an output interface unit, where:
The weight adjusting unit is used for receiving the multipath error information E total output by the error information generating unit, and calculating weight coefficients of the HPLC synchronous signal and the HRF synchronous signal based on the following weight adjusting algorithm, wherein the formula is as follows: w HRF＝1-wHPLC, wherein w HPLC is a weight coefficient of the HPLC synchronization signal, w HRF is a weight coefficient of the HRF synchronization signal, k is a weight adjustment factor, and E total is total error information caused by multipath effect;
The signal fusion unit is used for receiving the synchronizing signal S HPLC from the HPLC communication module and the synchronizing signal S HRF from the HRF communication module, generating a fused synchronizing signal based on the weight coefficients w HPLC and w HRF provided by the weight adjustment unit through the following signal fusion formula, wherein S fused＝wHPLC·SHPLC+wHRF·SHRF, S fused is the fused synchronizing signal, S HPLC is the HPLC synchronizing signal, S HRF is the HRF synchronizing signal, and w HPLC and w HRF are the weight coefficients of the respective synchronizing signals;
and the output interface unit is used for outputting the fused synchronous signal S fused generated by the signal fusion unit to the synchronous control module.
Optionally, the synchronization control module includes a signal comparing unit, a control instruction generating unit, and a communication interface unit, where:
the signal comparison unit is used for receiving the compensated synchronous signal output by the synchronous compensation module and the fused synchronous signal output by the dual-mode fusion module and calculating the synchronous state difference delta S of the two synchronous signals;
The control instruction generating unit is used for generating corresponding control instructions based on the synchronous state difference delta S calculated by the signal comparing unit through the following control algorithm, wherein the formula is as follows: Wherein C is a control instruction, K p is a proportional coefficient, K i is an integral coefficient, K d is a differential coefficient, deltaS is a synchronous state difference, t is a time variable, and ≡DeltaSdt is an integral of the synchronous state difference; is the differentiation of the synchronization state differences;
and the communication interface unit is used for transmitting the control instruction C output by the control instruction generating unit to the HPLC communication module and the HRF communication module so as to realize dynamic adjustment of the time-frequency synchronization parameters.
Optionally, the monitoring feedback module comprises a monitoring unit, a data collecting unit and a data transmission unit, wherein:
the monitoring unit is used for continuously monitoring the running state and the time-frequency synchronization effect of the system;
the monitoring unit specifically comprises:
the running state monitoring subunit is used for monitoring running state data of each module of the system in real time, including signal strength and signal quality, and recording related data;
the synchronization effect evaluation subunit is used for evaluating the time-frequency synchronization effect of the system, calculating a synchronization quality index based on the multipath synchronization error information provided by the error information generation unit, and the formula is as follows: Wherein, Q sync is a synchronization quality index, and E total is multipath error information;
The data collection unit is used for collecting the running state data and the synchronous quality index provided by the monitoring unit and collating the running state data and the synchronous quality index into real-time feedback data;
and the data transmission unit is used for transmitting the real-time feedback data to the multi-path detection module and the synchronous compensation module so as to carry out optimization adjustment.
The time-frequency synchronization method based on HPLC and HRF dual-mode communication is realized by the time-frequency synchronization system based on HPLC and HRF dual-mode communication, and comprises the following steps:
S1, receiving synchronous signals from an HPLC communication module and an HRF communication module simultaneously;
s2, analyzing the HPLC synchronous signal and the HRF synchronous signal received in the S1, and calculating the arrival time difference, the amplitude attenuation and the phase change;
S3, generating multipath synchronization error information based on the arrival time difference, the amplitude attenuation and the phase change calculated in the step S2;
s4, adjusting time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath synchronization error information generated in the S3, and generating a compensated synchronization signal;
S5, adjusting weight coefficients of the HPLC synchronization signal and the HRF synchronization signal based on the multipath synchronization error information generated in the S3, and generating a fused synchronization signal;
S6, calculating a synchronization state difference based on the compensated synchronization signal and the fused synchronization signal generated in the S4 and the S5, and generating a control instruction to adjust time-frequency synchronization parameters of the HPLC communication module and the HRF communication module;
And S7, continuously monitoring the running state and the time-frequency synchronization effect of the system, collecting real-time feedback data, and transmitting the real-time feedback data to the multi-path detection module and the synchronization compensation module for optimization adjustment.
The invention has the beneficial effects that:
The invention solves the problem of synchronization error caused by multipath effect in a dual-mode communication system by comprehensively adopting multipath effect detection and synchronization compensation technology, and particularly, can identify and quantify the influence of multipath effect on synchronization precision in real time by accurately analyzing the arrival time difference, amplitude attenuation and phase change of communication signals, thereby effectively reducing the accumulation of synchronization error.
According to the invention, through comprehensive analysis of the HPLC and HRF communication signals, the synchronization parameters are dynamically adjusted, and the fusion process of the synchronization signals is optimized, so that the reliability and stability of time-frequency synchronization are improved, the limitation that multipath effects cannot be effectively processed in the prior art is solved, and the transmission efficiency and anti-interference capability of the system are improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a time-frequency synchronization system for dual-mode communication according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a time-frequency synchronization method of dual-mode communication according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments. While the invention has been described herein in detail in order to make the embodiments more detailed, the following embodiments are preferred and can be embodied in other forms as well known to those skilled in the art, and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the invention to the specific forms disclosed herein.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.
As shown in fig. 1, the time-frequency synchronization system and method based on HPLC and HRF dual-mode communication includes a multi-path detection module, a synchronization compensation module, a dual-mode fusion module, a synchronization control module, and a monitoring feedback module;
The multi-path detection module is used for receiving the synchronous signals of the HPLC communication module and the HRF communication module, identifying and quantifying the synchronous error caused by the multi-path effect by analyzing the arrival time difference, the amplitude attenuation and the phase change of the signals, and outputting multi-path error information;
the synchronization compensation module is used for receiving the multipath error information output by the multipath detection module, adjusting the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath error information, and outputting a compensated synchronization signal;
The dual-mode fusion module is used for receiving the synchronous signals from the HPLC communication module and the HRF communication module, adjusting the weights of the two signals to fuse based on the multipath error information provided by the multipath detection module, and outputting the fused synchronous signals;
the synchronous control module is connected with the synchronous compensation module and the dual-mode fusion module and is used for receiving the compensated synchronous signal and the fused synchronous signal to coordinate the time-frequency synchronous state of the HPLC communication module and the HRF communication module and output a control instruction;
And the monitoring feedback module is used for continuously monitoring the running state and the synchronous effect of the system and collecting real-time feedback data so as to be optimally adjusted by the multipath detection module and the synchronous compensation module.
The multipath detection module comprises a synchronous signal receiving unit, a signal analysis unit and an error information generation unit, wherein:
The system comprises a synchronization signal receiving unit, a digital signal processing unit, a Phase Locking Loop (PLL) circuit, a signal receiving unit and a signal processing unit, wherein the synchronization signal receiving unit is used for simultaneously receiving synchronization signals from an HPLC communication module and an HRF communication module, and is configured with a clock synchronization interface and a signal receiving interface;
the signal analysis unit is used for analyzing the HPLC synchronous signal and the HRF synchronous signal received by the synchronous signal receiving unit;
The signal analysis unit specifically includes:
The arrival time difference analysis subunit is used for measuring the arrival time difference between the HPLC synchronous signal and the HRF synchronous signal and recording related data;
The amplitude attenuation analysis subunit is used for evaluating the amplitude attenuation of the synchronous signal caused by the multipath effect in the propagation process and generating attenuation parameters;
the phase change analysis subunit is used for detecting the phase change caused by the synchronous signal in the multipath propagation process and generating phase deviation data;
The error information generating unit is used for calculating a synchronous error caused by a multipath effect based on the arrival time difference, the amplitude attenuation and the phase change data provided by the signal analyzing unit and outputting multipath error information to the synchronous compensation module and the dual-mode fusion module; the synchronous signal processing method comprises the steps of realizing clock synchronization of synchronous signals from an HPLC (high performance liquid chromatography) communication module and an HRF (high performance liquid chromatography) communication module by introducing a Phase Locking Loop (PLL) circuit as a clock synchronization interface, ensuring consistency of the synchronous signals of the two communication modes on a time reference, respectively measuring arrival time difference, amplitude attenuation and phase change of the synchronous signals by each analysis subunit in a signal analysis unit by adopting a digital signal processing technology, generating corresponding error information, and calculating a synchronous error according to the data by an error information generation unit and outputting the synchronous error to a synchronous compensation module and a dual-mode fusion module so as to support subsequent synchronous parameter adjustment and signal fusion.
The amplitude attenuation analysis subunit specifically includes:
Measuring signal intensity, namely measuring signal intensity of the received HPLC synchronous signal and the received HRF synchronous signal, and recording the signal intensity as P HPLC and P HRF respectively;
Standard signal intensity before transmission is acquired and recorded as P HPLC,0 and P HRF,0 respectively;
Calculating attenuation factors, namely, calculating attenuation factors alpha HPLC and alpha HRF of the HPLC synchronous signal and the HRF synchronous signal according to the following formula: Wherein, P received represents the signal intensity of the received HPLC synchronization signal and HRF synchronization signal, P transmitted represents the corresponding standard signal intensities P HPLC,0 and P HRF,0 before transmission, and alpha is the attenuation factor of the corresponding synchronization signal;
and generating an attenuation parameter, namely calculating and generating an amplitude attenuation parameter A according to the following multipath attenuation model formula by combining an attenuation factor and a signal propagation distance, wherein the formula is A=A 0+α·log10 (d), A is the attenuated signal amplitude, A 0 is the reference signal amplitude, alpha is the calculated attenuation factor, and d is the signal propagation distance.
The phase change analysis subunit includes:
The synchronization signal preprocessing, namely filtering and denoising the received HPLC synchronization signal and HRF synchronization signal, so as to ensure the definition and accuracy of the signals and provide a clean data source for the subsequent phase analysis;
calculating the phase, namely calculating the phase value of the signal according to the received synchronous signal, and calculating the phase change through the following formula: Wherein, In order to be the amount of phase change,For the phase of the received synchronization signal,The reference signal is usually the theoretical phase of the synchronous signal under ideal conditions;
phase change detection based on calculated phase change amount Judging the phase shift caused by the synchronous signal in the multipath propagation process, and converting the phase shift into phase shift data, wherein the phase shift is detected by the following phase shift detection algorithm, and the formula is as follows: Wherein, As the amount of phase shift,The phase change quantity of the nth time point is N, and the number of sample points in the time window is N;
generating phase offset data, phase offset amount Through the steps, the phase change of the synchronous signal in the multipath propagation process, especially the phase shift caused by multipath effects such as reflection, refraction and the like, can be effectively detected and quantized, and the method can provide accurate synchronous error information for a system through accurate phase change calculation and drift detection, thereby optimizing the time-frequency synchronization process.
The error information generation unit includes:
The arrival time difference data integration subunit is used for receiving the arrival time difference data provided by the signal analysis unit and calculating a time synchronization error delta t error caused by the multipath effect according to the following formula, wherein delta t error＝ΔtHRF-ΔtHPLC is the arrival time difference of the HRF communication signal, delta t HRF is the arrival time difference of the HPLC communication signal, and delta t error is the time synchronization error caused by the multipath effect;
The amplitude attenuation data integration subunit is used for receiving the amplitude attenuation data provided by the signal analysis subunit, setting the amplitude attenuation of the HRF signal as A HRF and the amplitude attenuation of the HPLC signal as A HPLC, and calculating an amplitude attenuation error A error caused by a multipath effect, wherein the formula is A error＝AHRF-AHPLC, A HRF is the amplitude attenuation of the HRF signal, A HPLC is the amplitude attenuation of the HPLC signal, and A error is the amplitude attenuation error caused by the multipath effect;
a phase change data integration subunit for receiving the phase change data provided by the signal analysis subunit and setting the phase change amount of the HRF signal as And the phase change of the HPLC signal isAnd calculates the phase synchronization errorThe formula is: Wherein, As the amount of phase change of the HRF signal,As the amount of phase change of the HPLC signal,Is a phase synchronization error caused by multipath effects;
A combined error generation subunit for generating a time synchronization error Deltat error, an amplitude attenuation error A erro r and a phase synchronization error In combination, multipath synchronization error information is generated by the following weighted average algorithm: wherein E total is a multipath error, w t、wA and Weighting coefficients for time synchronization error, amplitude attenuation error and phase synchronization error, and satisfyThe error information generation scheme can be used for effectively combining various signal characteristics (such as arrival time difference, amplitude attenuation and phase change), comprehensively evaluating and calculating the synchronous error caused by the multipath effect, so as to accurately generate multipath synchronous error information, further optimize time-frequency synchronous performance and effectively improve the time-frequency synchronous precision of the HPLC and HRF dual-mode communication system in a complex propagation environment.
The synchronous compensation module comprises a parameter adjustment unit, a synchronous signal generation unit and a control interface unit, wherein:
The parameter adjusting unit is used for receiving the multipath error information E total output by the error information generating unit and adjusting the time-frequency synchronous parameters of the HPLC communication module and the HRF communication module based on a synchronous parameter adjusting algorithm, and the formula is as follows: Wherein θ adjust is the adjustment amount of the synchronization parameter, t is the time variable, dt is the time increment, and K p、Ki and K d are the proportional coefficient, the integral coefficient and the differential coefficient respectively, which are suitable for a proportional-integral-differential (PID) control algorithm;
The synchronous signal generating unit is used for generating a compensated synchronous signal according to the adjustment quantity delta theta output by the parameter adjusting unit, and particularly, the synchronous signal is corrected through the following time-frequency adjustment formula: Wherein S original is the original synchronous signal, Is a phase adjustment factor for correcting the phase offset of the synchronization signal;
The control interface unit is used for transmitting the compensated synchronous signal S compensated output by the synchronous signal generating unit to the synchronous control module and transmitting the adjusted synchronous parameter theta adjust to the HPLC communication module and the HRF communication module so as to realize dynamic adjustment of the time-frequency synchronous parameter.
The dual-mode fusion module comprises a weight adjustment unit, a signal fusion unit and an output interface unit, wherein:
The weight adjusting unit is used for receiving the multipath error information E total output by the error information generating unit, and calculating weight coefficients of the HPLC synchronous signal and the HRF synchronous signal based on the following weight adjusting algorithm, wherein the formula is as follows: w HRF＝1-wHPLC, wherein w HPLC is a weight coefficient of the HPLC synchronization signal, w HRF is a weight coefficient of the HRF synchronization signal, k is a weight adjustment factor for controlling sensitivity of weight adjustment, and E total is total error information caused by multipath effect;
The signal fusion unit is used for receiving the synchronizing signal S HPLC from the HPLC communication module and the synchronizing signal S HRF from the HRF communication module, generating a fused synchronizing signal based on the weight coefficients w HPLC and w HRF provided by the weight adjustment unit through the following signal fusion formula, wherein S fused＝wHPLC·SHPLC+wHRF·SHRF, S fused is the fused synchronizing signal, S HPLC is the HPLC synchronizing signal, S HRF is the HRF synchronizing signal, and w HPLC and w HRF are the weight coefficients of the respective synchronizing signals;
The dual-mode fusion module can dynamically adjust the weight of the HPLC and HRF synchronous signals according to the multipath synchronous error information and generate the fused synchronous signals by adopting a linear weighted fusion algorithm, and the process ensures that the synchronous signals of two communication modes can be combined with optimal weight under the influence of multipath effect to realize high-quality time-frequency synchronization.
The synchronous control module comprises a signal comparison unit, a control instruction generation unit and a communication interface unit, wherein:
The signal comparison unit is used for receiving the compensated synchronous signal output by the synchronous compensation module and the fused synchronous signal output by the dual-mode fusion module, and calculating the synchronous state difference delta S of the compensated synchronous signal and the fused synchronous signal, wherein the formula is delta S=S fused-Scompensated, S fused is the fused synchronous signal, S compensated is the compensated synchronous signal, and delta S is the synchronous state difference;
The control instruction generating unit is used for generating corresponding control instructions based on the synchronous state difference delta S calculated by the signal comparing unit through the following control algorithm, wherein the formula is as follows: Wherein C is a control instruction, K p is a proportional coefficient, K i is an integral coefficient, K d is a differential coefficient, deltaS is a synchronous state difference, t is a time variable, and ≡DeltaSdt is an integral of the synchronous state difference; is the differentiation of the synchronization state differences;
The communication interface unit is used for transmitting the control command C output by the control command generating unit to the HPLC communication module and the HRF communication module so as to realize dynamic adjustment of the time-frequency synchronization parameters, and by the technical scheme, the synchronization control module can accurately identify the synchronization state difference between the compensated synchronization signal and the fused synchronization signal, generate an accurate control command based on the synchronization state difference, and guide the HPLC communication module and the HRF communication module to dynamically adjust the time-frequency synchronization parameters.
The monitoring feedback module comprises a monitoring unit, a data collecting unit and a data transmission unit, wherein:
the monitoring unit is used for continuously monitoring the running state and the time-frequency synchronization effect of the system;
The monitoring unit specifically comprises:
The running state monitoring subunit is used for monitoring running state data of all modules (including an HPLC communication module, an HRF communication module, a multi-path detection module, a synchronous compensation module, a dual-mode fusion module and the like) of the system in real time, including signal strength and signal quality, and recording related data;
the synchronization effect evaluation subunit is used for evaluating the time-frequency synchronization effect of the system, calculating a synchronization quality index based on the multipath synchronization error information provided by the error information generation unit, and the formula is as follows: Wherein, Q sync is a synchronization quality index, and E total is multipath error information;
The data collection unit is used for collecting the running state data and the synchronous quality index provided by the monitoring unit and collating the running state data and the synchronous quality index into real-time feedback data;
The data transmission unit is used for transmitting the real-time feedback data to the multi-path detection module and the synchronous compensation module for optimization adjustment, and by the technical scheme, the synchronous control module can monitor the running state and the time-frequency synchronous effect of the system in real time, accurately collect and transmit the real-time feedback data and provide timely and accurate data support for the multi-path detection module and the synchronous compensation module.
As shown in fig. 2, the time-frequency synchronization method based on HPLC and HRF dual-mode communication is implemented by the time-frequency synchronization system based on HPLC and HRF dual-mode communication, and includes the following steps:
S1, receiving synchronous signals from an HPLC communication module and an HRF communication module simultaneously;
s2, analyzing the HPLC synchronous signal and the HRF synchronous signal received in the S1, and calculating the arrival time difference, the amplitude attenuation and the phase change;
S3, generating multipath synchronization error information based on the arrival time difference, the amplitude attenuation and the phase change calculated in the step S2;
s4, adjusting time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath synchronization error information generated in the S3, and generating a compensated synchronization signal;
S5, adjusting weight coefficients of the HPLC synchronization signal and the HRF synchronization signal based on the multipath synchronization error information generated in the S3, and generating a fused synchronization signal;
S6, calculating a synchronization state difference based on the compensated synchronization signal and the fused synchronization signal generated in the S4 and the S5, and generating a control instruction to adjust time-frequency synchronization parameters of the HPLC communication module and the HRF communication module;
And S7, continuously monitoring the running state and time-frequency synchronization effect of the system, collecting real-time feedback data, and transmitting the real-time feedback data to the multi-path detection module and the synchronization compensation module for optimization adjustment, wherein the method ensures that the system can respond in real time and optimize the synchronization state in a complex communication environment, remarkably improves the communication quality and the stability of data transmission, and has wide application prospect and practical value.
The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present invention.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1.基于HPLC与HRF双模通信的时频同步系统，其特征在于，包括多路径检测模块、同步补偿模块、双模融合模块、同步控制模块以及监控反馈模块；1. A time-frequency synchronization system based on HPLC and HRF dual-mode communication, characterized in that it includes a multipath detection module, a synchronization compensation module, a dual-mode fusion module, a synchronization control module and a monitoring feedback module; 多路径检测模块：用于接收HPLC通信模块和HRF通信模块的同步信号，并通过分析信号的到达时间差、幅度衰减和相位变化，识别并量化多路径效应带来的同步误差，输出多路径误差信息；Multipath detection module: used to receive the synchronization signals of the HPLC communication module and the HRF communication module, and identify and quantify the synchronization error caused by the multipath effect by analyzing the arrival time difference, amplitude attenuation and phase change of the signal, and output the multipath error information; 同步补偿模块：用于接收多路径检测模块输出的多路径误差信息，并根据该多路径误差信息调整HPLC通信模块与HRF通信模块的时频同步参数，输出补偿后的同步信号；Synchronous compensation module: used to receive the multipath error information output by the multipath detection module, and adjust the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath error information, and output the compensated synchronization signal; 双模融合模块：用于接收来自HPLC通信模块和HRF通信模块的同步信号，并基于多路径检测模块提供的多路径误差信息，调整两种信号的权重进行融合，输出融合后的同步信号；Dual-mode fusion module: used to receive the synchronization signals from the HPLC communication module and the HRF communication module, and adjust the weights of the two signals for fusion based on the multipath error information provided by the multipath detection module, and output the fused synchronization signal; 同步控制模块：连接于同步补偿模块和双模融合模块，用于接收补偿后的同步信号与融合后的同步信号，以协调HPLC通信模块与HRF通信模块的时频同步状态，输出控制指令；Synchronous control module: connected to the synchronous compensation module and the dual-mode fusion module, used to receive the compensated synchronization signal and the fused synchronization signal to coordinate the time-frequency synchronization state of the HPLC communication module and the HRF communication module, and output control instructions; 监控反馈模块：用于持续监控系统的运行状态和同步效果，并收集实时反馈数据，以供多路径检测模块和同步补偿模块进行优化调整。Monitoring and feedback module: used to continuously monitor the operating status and synchronization effect of the system, and collect real-time feedback data for optimization and adjustment by the multipath detection module and the synchronization compensation module. 2.根据权利要求1所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述多路径检测模块包括同步信号接收单元、信号分析单元和误差信息生成单元；其中：2. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 1, characterized in that the multipath detection module comprises a synchronization signal receiving unit, a signal analysis unit and an error information generating unit; wherein: 同步信号接收单元：用于同时接收来自HPLC通信模块和HRF通信模块的同步信号，该同步信号接收单元配置有时钟同步接口和信号接收接口；其中，时钟同步接口通过相位锁定环电路实现对HPLC同步信号和HRF同步信号的时钟同步，确保接收信号的时间基准一致；信号接收接口用于连接HPLC通信模块和HRF通信模块，接收并转换来自两种通信模块的同步信号；Synchronous signal receiving unit: used to simultaneously receive the synchronous signals from the HPLC communication module and the HRF communication module, the synchronous signal receiving unit is configured with a clock synchronization interface and a signal receiving interface; wherein the clock synchronization interface realizes the clock synchronization of the HPLC synchronous signal and the HRF synchronous signal through a phase-locked loop circuit to ensure that the time reference of the received signal is consistent; the signal receiving interface is used to connect the HPLC communication module and the HRF communication module, and receive and convert the synchronous signals from the two communication modules; 信号分析单元：用于对同步信号接收单元接收到的HPLC同步信号和HRF同步信号进行分析；Signal analysis unit: used for analyzing the HPLC synchronization signal and the HRF synchronization signal received by the synchronization signal receiving unit; 所述信号分析单元具体包括：The signal analysis unit specifically includes: 到达时间差分析子单元：用于测量HPLC同步信号与HRF同步信号之间的到达时间差，并记录相关数据；Arrival time difference analysis subunit: used to measure the arrival time difference between the HPLC synchronization signal and the HRF synchronization signal, and record the relevant data; 幅度衰减分析子单元：用于评估同步信号在传播过程中因多路径效应导致的幅度衰减，并生成衰减参数；Amplitude attenuation analysis subunit: used to evaluate the amplitude attenuation of the synchronization signal caused by the multipath effect during the propagation process and generate attenuation parameters; 相位变化分析子单元：用于检测同步信号在多路径传播过程中引起的相位变化，并生成相位偏移数据；Phase change analysis subunit: used to detect the phase change caused by the synchronization signal during multipath propagation and generate phase offset data; 误差信息生成单元：基于信号分析单元提供的到达时间差、幅度衰减和相位变化数据，计算出多路径效应带来的同步误差，并将多路径误差信息输出至同步补偿模块和双模融合模块。Error information generation unit: Based on the arrival time difference, amplitude attenuation and phase change data provided by the signal analysis unit, it calculates the synchronization error caused by the multipath effect, and outputs the multipath error information to the synchronization compensation module and the dual-mode fusion module. 3.根据权利要求2所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述幅度衰减分析子单元具体包括：3. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 2, characterized in that the amplitude attenuation analysis subunit specifically comprises: 测量信号强度：测量接收到的HPLC同步信号和HRF同步信号的信号强度；Measuring signal strength: measuring the signal strength of the received HPLC synchronization signal and HRF synchronization signal; 获取标准信号强度：获取传输前的标准信号强度；Get standard signal strength: Get the standard signal strength before transmission; 计算衰减因子：根据以下公式计算HPLC同步信号和HRF同步信号的衰减因子，公式为：其中，Preceived代表接收到的HPLC同步信号和HRF同步信号的信号强度，Ptransmitted代表对应的传输前标准信号强度PHPLC,0和PHRF,0，α为对应同步信号的衰减因子；Calculate the attenuation factor: Calculate the attenuation factor of the HPLC synchronization signal and the HRF synchronization signal according to the following formula: Wherein, P received represents the signal strength of the received HPLC synchronization signal and HRF synchronization signal, P transmitted represents the corresponding standard signal strength before transmission P HPLC,0 and P HRF,0 , and α is the attenuation factor of the corresponding synchronization signal; 衰减参数生成：根据以下多路径衰减模型公式，结合衰减因子和信号传播距离，计算并生成幅度衰减参数A，公式为：A＝A0+α·log10(d)，其中，A为衰减后的信号幅度，A0为参考信号幅度，α为计算的衰减因子，d为信号传播距离。Attenuation parameter generation: According to the following multipath attenuation model formula, combined with the attenuation factor and signal propagation distance, the amplitude attenuation parameter A is calculated and generated. The formula is: A = A 0 + α·log 10 (d), where A is the attenuated signal amplitude, A 0 is the reference signal amplitude, α is the calculated attenuation factor, and d is the signal propagation distance. 4.根据权利要求3所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述相位变化分析子单元包括：4. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 3, characterized in that the phase change analysis subunit comprises: 同步信号预处理：对接收到的HPLC同步信号和HRF同步信号进行滤波和去噪，为后续的相位分析提供干净的数据源；Synchronous signal preprocessing: Filter and denoise the received HPLC synchronous signal and HRF synchronous signal to provide a clean data source for subsequent phase analysis; 计算相位：根据接收到的同步信号，计算信号的相位值，并通过以下公式计算相位变化：其中，为相位变化量，为接收到的同步信号的相位，为参考信号的相位；Calculate phase: Calculate the phase value of the signal based on the received synchronization signal, and calculate the phase change using the following formula: in, is the phase change, is the phase of the received synchronization signal, is the phase of the reference signal; 相位变化检测：基于计算的相位变化量判断同步信号在多路径传播过程中引起的相位偏移，并将其转换为相位偏移数据；具体通过以下相位漂移检测算法检测相位的漂移，公式为：其中，为相位漂移量，为第n个时间点的相位变化量，N为时间窗口内的样本点数；Phase change detection: based on the calculated phase change Determine the phase shift caused by the synchronization signal during multipath propagation and convert it into phase shift data; specifically, the phase drift is detected by the following phase drift detection algorithm, and the formula is: in, is the phase drift, is the phase change at the nth time point, and N is the number of sample points in the time window; 生成相位偏移数据：将相位漂移量作为相位偏移数据。Generate phase shift data: The phase shift amount as phase shift data. 5.根据权利要求4所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述误差信息生成单元包括：5. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 4, characterized in that the error information generating unit comprises: 到达时间差数据整合子单元：用于接收信号分析单元提供的到达时间差数据，并根据以下公式计算由多路径效应引起的时间同步误差Δterror，公式为：Δterror＝ΔtHRF-ΔtHPLC，其中，ΔtHRF为HRF通信信号的到达时间差，ΔtHPLC为HPLC通信信号的到达时间差，Δterror为由多路径效应引起的时间同步误差；The arrival time difference data integration subunit is used to receive the arrival time difference data provided by the signal analysis unit, and calculate the time synchronization error Δt error caused by the multipath effect according to the following formula: Δt error = Δt HRF - Δt HPLC , wherein Δt HRF is the arrival time difference of the HRF communication signal, Δt HPLC is the arrival time difference of the HPLC communication signal, and Δt error is the time synchronization error caused by the multipath effect; 幅度衰减数据整合子单元：用于接收信号分析子单元提供的幅度衰减数据，设HRF信号的幅度衰减量为AHRF和HPLC信号的幅度衰减量为AHPLC，并计算由多路径效应引起的幅度衰减误差Aerror；Amplitude attenuation data integration subunit: used for receiving the amplitude attenuation data provided by the signal analysis subunit, assuming the amplitude attenuation of the HRF signal as A HRF and the amplitude attenuation of the HPLC signal as A HPLC , and calculating the amplitude attenuation error A error caused by the multipath effect; 相位变化数据整合子单元：用于接收信号分析子单元提供的相位变化数据，设HRF信号的相位变化量为和HPLC信号的相位变化量为并计算相位同步误差 Phase change data integration subunit: used to receive the phase change data provided by the signal analysis subunit. Assume that the phase change of the HRF signal is The phase change of the HPLC signal is And calculate the phase synchronization error 综合误差生成子单元，用于将时间同步误差Δterror、幅度衰减误差Aerror和相位同步误差结合，通过以下加权平均算法生成多路径同步误差信息：其中，Etotal为多路径误差，wt、wA和为时间同步误差、幅度衰减误差和相位同步误差的加权系数，且满足 The comprehensive error generation subunit is used to convert the time synchronization error Δt error , amplitude attenuation error A error and phase synchronization error Combined, multipath synchronization error information is generated through the following weighted average algorithm: Where, E total is the multipath error, w t , w A and is the weighting coefficient of time synchronization error, amplitude attenuation error and phase synchronization error, and satisfies 6.根据权利要求5所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述同步补偿模块包括参数调整单元、同步信号生成单元以及控制接口单元，其中：6. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 5, characterized in that the synchronization compensation module includes a parameter adjustment unit, a synchronization signal generation unit and a control interface unit, wherein: 参数调整单元：用于接收误差信息生成单元输出的多路径误差信息Etotal，并基于同步参数调整算法调整HPLC通信模块与HRF通信模块的时频同步参数，公式为：其中，θadjust为同步参数的调整量，t为时间变量，dt为时间增量，Kp、Ki和Kd分别为比例系数、积分系数和微分系数；The parameter adjustment unit is used to receive the multipath error information E total output by the error information generation unit, and adjust the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module based on the synchronization parameter adjustment algorithm. The formula is: Among them, θ adjust is the adjustment amount of synchronization parameters, t is the time variable, dt is the time increment, K p , Ki and K d are the proportional coefficient, integral coefficient and differential coefficient respectively; 同步信号生成单元：用于根据参数调整单元输出的调整量Δθ，生成补偿后的同步信号，具体通过以下时频调节公式实现同步信号的修正： 其中，Soriginal为原始同步信号，为相位调节因子；The synchronization signal generating unit is used to generate a compensated synchronization signal according to the adjustment amount Δθ output by the parameter adjustment unit, and specifically realizes the correction of the synchronization signal through the following time-frequency adjustment formula: Among them, S original is the original synchronization signal, is the phase adjustment factor; 控制接口单元：用于将同步信号生成单元输出的补偿后同步信号Scompensated传递至同步控制模块。Control interface unit: used to transmit the compensated synchronization signal S compensated output by the synchronization signal generation unit to the synchronization control module. 7.根据权利要求5所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述双模融合模块包括权重调整单元、信号融合单元以及输出接口单元，其中：7. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 5, characterized in that the dual-mode fusion module includes a weight adjustment unit, a signal fusion unit and an output interface unit, wherein: 权重调整单元：用于接收误差信息生成单元输出的多路径误差信息Etotal，并基于以下权重调整算法计算HPLC同步信号和HRF同步信号的权重系数，公式为：wHRF＝1-wHPLC，其中，wHPLC为HPLC同步信号的权重系数，wHRF为HRF同步信号的权重系数，k为权重调整因子，Etotal为由多路径效应引起的总误差信息；The weight adjustment unit is used to receive the multipath error information E total output by the error information generation unit, and calculate the weight coefficient of the HPLC synchronization signal and the HRF synchronization signal based on the following weight adjustment algorithm, the formula is: w HRF =1-w HPLC , wherein w HPLC is the weight coefficient of the HPLC synchronization signal, w HRF is the weight coefficient of the HRF synchronization signal, k is the weight adjustment factor, and E total is the total error information caused by the multipath effect; 信号融合单元：用于接收来自HPLC通信模块的同步信号SHPLC和来自HRF通信模块的同步信号SHRF，并基于权重调整单元提供的权重系数wHPLC和wHRF，通过以下信号融合公式生成融合后的同步信号：Sfused＝wHPLC·SHPLC+wHRF·SHRF，其中，Sfused为融合后的同步信号，SHPLC为HPLC同步信号，SHRF为HRF同步信号，wHPLC和wHRF为各自同步信号的权重系数；A signal fusion unit: used for receiving a synchronization signal S HPLC from the HPLC communication module and a synchronization signal S HRF from the HRF communication module, and generating a fused synchronization signal through the following signal fusion formula based on the weight coefficients w HPLC and w HRF provided by the weight adjustment unit: S fused =w HPLC ·S HPLC +w HRF ·S HRF , wherein S fused is the fused synchronization signal, S HPLC is the HPLC synchronization signal, S HRF is the HRF synchronization signal, and w HPLC and w HRF are the weight coefficients of the respective synchronization signals; 输出接口单元：用于将信号融合单元生成的融合后同步信号Sfused输出至同步控制模块。Output interface unit: used to output the fused synchronization signal S fused generated by the signal fusion unit to the synchronization control module. 8.根据权利要求7所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述同步控制模块包括信号比较单元、控制指令生成单元以及通信接口单元，其中：8. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 7, characterized in that the synchronization control module includes a signal comparison unit, a control instruction generation unit and a communication interface unit, wherein: 信号比较单元：用于接收同步补偿模块输出的补偿后同步信号和双模融合模块输出的融合后同步信号，并计算两者的同步状态差异ΔS；A signal comparison unit is used to receive the compensated synchronization signal output by the synchronization compensation module and the fused synchronization signal output by the dual-mode fusion module, and calculate the synchronization state difference ΔS between the two; 控制指令生成单元：基于信号比较单元计算出的同步状态差异ΔS，通过以下控制算法生成相应的控制指令，公式为：其中，C为控制指令；Kp为比例系数；Ki为积分系数；Kd为微分系数；ΔS为同步状态差异；t为时间变量；∫ΔSdt为同步状态差异的积分；为同步状态差异的微分；Control instruction generation unit: Based on the synchronization state difference ΔS calculated by the signal comparison unit, the corresponding control instruction is generated through the following control algorithm, and the formula is: Wherein, C is the control command; Kp is the proportional coefficient; Ki is the integral coefficient; Kd is the differential coefficient; ΔS is the synchronization state difference; t is the time variable; ∫ΔSdt is the integral of the synchronization state difference; is the differential of the synchronization state difference; 通信接口单元：用于将控制指令生成单元输出的控制指令C传递至HPLC通信模块和HRF通信模块，以实现时频同步参数的动态调整。Communication interface unit: used to transmit the control instruction C output by the control instruction generation unit to the HPLC communication module and the HRF communication module to achieve dynamic adjustment of the time-frequency synchronization parameters. 9.根据权利要求1所述的基于HPLC与HRF双模通信的时频同步系统，其特征在于，所述监控反馈模块包括监控单元、数据收集单元以及数据传输单元；其中：9. The time-frequency synchronization system based on HPLC and HRF dual-mode communication according to claim 1, characterized in that the monitoring feedback module comprises a monitoring unit, a data collection unit and a data transmission unit; wherein: 监控单元：用于持续监控系统的运行状态和时频同步效果；Monitoring unit: used to continuously monitor the operating status and time-frequency synchronization effect of the system; 所述监控单元具体包括：The monitoring unit specifically includes: 运行状态监测子单元：用于实时监测系统各模块的运行状态数据，包括信号强度和信号质量，并记录相关数据；Operation status monitoring subunit: used to monitor the operation status data of each module of the system in real time, including signal strength and signal quality, and record relevant data; 同步效果评估子单元：用于评估系统的时频同步效果，基于误差信息生成单元提供的多路径同步误差信息计算同步质量指标，公式为：其中，Qsync为同步质量指标，Etotal为多路径误差信息；Synchronization effect evaluation subunit: used to evaluate the time-frequency synchronization effect of the system, and calculate the synchronization quality index based on the multipath synchronization error information provided by the error information generation unit. The formula is: Among them, Q sync is the synchronization quality indicator, and E total is the multipath error information; 数据收集单元：用于收集监控单元提供的运行状态数据和同步质量指标，并将其整理为实时反馈数据；Data collection unit: used to collect the operation status data and synchronization quality indicators provided by the monitoring unit, and organize them into real-time feedback data; 数据传输单元：用于将实时反馈数据传输至多路径检测模块和同步补偿模块，以供其进行优化调整。Data transmission unit: used to transmit real-time feedback data to the multipath detection module and the synchronous compensation module for optimization and adjustment. 10.基于HPLC与HRF双模通信的时频同步方法，由权利要求1-9任一项所述的基于HPLC与HRF双模通信的时频同步系统实现，其特征在于，包括以下步骤：10. A time-frequency synchronization method based on HPLC and HRF dual-mode communication, implemented by the time-frequency synchronization system based on HPLC and HRF dual-mode communication according to any one of claims 1 to 9, characterized in that it comprises the following steps: S1：同时从HPLC通信模块和HRF通信模块接收同步信号；S1: Receive synchronization signals from the HPLC communication module and the HRF communication module simultaneously; S2：对S1中接收的HPLC同步信号和HRF同步信号进行分析，计算其到达时间差、幅度衰减和相位变化；S2: Analyze the HPLC synchronization signal and HRF synchronization signal received in S1, and calculate their arrival time difference, amplitude attenuation and phase change; S3：基于步骤S2中计算的到达时间差、幅度衰减和相位变化，生成多路径同步误差信息；S3: Generate multipath synchronization error information based on the arrival time difference, amplitude attenuation and phase change calculated in step S2; S4：根据S3中生成的多路径同步误差信息，调整HPLC通信模块和HRF通信模块的时频同步参数，并生成补偿后的同步信号；S4: adjusting the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module according to the multipath synchronization error information generated in S3, and generating a compensated synchronization signal; S5：基于S3中生成的多路径同步误差信息，调整HPLC同步信号和HRF同步信号的权重系数，并生成融合后的同步信号；S5: Based on the multipath synchronization error information generated in S3, the weight coefficients of the HPLC synchronization signal and the HRF synchronization signal are adjusted, and a fused synchronization signal is generated; S6：基于S4和S5中生成的补偿后同步信号和融合后同步信号，计算同步状态差异，并生成控制指令以调整HPLC通信模块和HRF通信模块的时频同步参数；S6: Based on the compensated synchronization signal and the fused synchronization signal generated in S4 and S5, a synchronization state difference is calculated, and a control instruction is generated to adjust the time-frequency synchronization parameters of the HPLC communication module and the HRF communication module; S7：持续监控系统的运行状态和时频同步效果，收集实时反馈数据，并将其传输至多路径检测模块和同步补偿模块，以供其进行优化调整。S7: Continuously monitor the operating status and time-frequency synchronization effect of the system, collect real-time feedback data, and transmit it to the multipath detection module and the synchronization compensation module for optimization and adjustment.
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