CN116015590B - A signal phase alignment method, device and related equipment - Google Patents
A signal phase alignment method, device and related equipment Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及通信技术领域，尤其涉及一种信号的相位对齐方法、装置及相关设备。The present invention relates to the field of communication technology, in particular to a signal phase alignment method, device and related equipment.
背景技术Background technique
在发射机的DFE(Digital Front End，数字前端)算法中，比如，DPD(Digital Pre-Distortion，数字预失真)，IQ补偿等算法，通常需要将发射信号(可以是DFE中的任意信号)与接收反馈信号进行比较，因此需要通过接收反馈信号与发射信号之间进行对齐，从而获取接收信号和发射信号的准确值可以忽略模拟通路上的增益、时延、相位旋转等对DFE算法的影响。目前，在芯片中一般通过数字硬件逻辑的方式对接收反馈信号和发射信号直接进行运算，但由于接收反馈信号和发射信号一般为实复数，导致需要的硬件资源较高，出现接收反馈信号和发射信号对齐效率较低的问题。In the DFE (Digital Front End) algorithm of the transmitter, such as DPD (Digital Pre-Distortion, digital pre-distortion), IQ compensation and other algorithms, it is usually necessary to compare the transmitted signal (which can be any signal in the DFE) with the received feedback signal. Therefore, it is necessary to align the received feedback signal with the transmitted signal to obtain the accurate value of the received signal and the transmitted signal. The influence of the gain, delay, and phase rotation on the analog channel on the DFE algorithm can be ignored. At present, in the chip, the received feedback signal and the transmitted signal are generally directly calculated by means of digital hardware logic. However, since the received feedback signal and the transmitted signal are generally real complex numbers, the required hardware resources are high, and the alignment efficiency of the received feedback signal and the transmitted signal is low.
发明内容Contents of the invention
本发明实施例提供的一种信号的相位对齐的方法、装置及相关设备，解决了现有技术中反馈信号和发射信号对齐需要硬件资源较高的问题。The embodiments of the present invention provide a signal phase alignment method, device, and related equipment, which solve the problem in the prior art that the alignment of feedback signals and transmission signals requires high hardware resources.
第一方面，本发明实施例提供了一种信号的相位对齐方法，包括：In the first aspect, an embodiment of the present invention provides a signal phase alignment method, including:
获取发射信号与所述发射信号对应反馈信号的共轭的乘积；obtaining the product of the conjugate of the transmit signal and the feedback signal corresponding to the transmit signal;
将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；determining an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal;
根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。A phase adjustment factor is determined based on the approximate relative phase, the phase adjustment factor being used to phase align the transmit signal with the feedback signal.
可选的，所述获取发射信号与所述发射信号对应反馈信号的共轭的乘积之前，还包括：Optionally, before obtaining the product of the conjugate of the transmitted signal and the corresponding feedback signal of the transmitted signal, the method further includes:
对所述发射信号和所述反馈信号进行幅度对齐。Amplitude alignment is performed on the transmit signal and the feedback signal.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：Optionally, the determining the phase adjustment factor according to the approximate relative phase includes:
确定所述近似相对相位在参考象限中对应的参考相对相位，其中，所述近似相对相位的取值范围为[-π，π]，所述近似相对相位满足以下相位关系之一：Determine the reference relative phase corresponding to the approximate relative phase in the reference quadrant, wherein the value range of the approximate relative phase is [-π, π], and the approximate relative phase satisfies one of the following phase relationships:
与所述参考相对相位相等；is equal to said reference relative phase;
与所述参考相对相位之和为0；The sum of relative phases with the reference is 0;
与所述参考相对相位之和为π；The sum of relative phases with the reference is π;
与所述参考相对相位之差为-π；The difference from the relative phase of the reference is -π;
根据第一映射关系确定所述参考相对相位对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative phase according to the first mapping relationship;
根据所述近似相对相位满足的相位关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The signs of the real part and the imaginary part of the reference adjustment factor are adjusted according to the phase relationship satisfied by the approximate relative phase to obtain the phase adjustment factor.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：根据第二映射关系确定所述近似相对相位对应的近似相对数值，其中，所述近似相对数值的取值范围为[-P，P]；Optionally, the determining the phase adjustment factor according to the approximate relative phase includes: determining an approximate relative value corresponding to the approximate relative phase according to a second mapping relationship, wherein the value range of the approximate relative value is [-P, P];
确定所述近似相对数值在参考数值范围中对应的参考相对数值，其中，所述参考数值范围与所述参考象限对应的相位范围具有所述第二映射关系，所述参考相对数值与所述参考相对相位具有所述第二映射关系，所述近似相对数值满足以下数值关系之一：Determine the reference relative value corresponding to the approximate relative value in the reference value range, wherein the reference value range and the phase range corresponding to the reference quadrant have the second mapping relationship, the reference relative value and the reference relative phase have the second mapping relationship, and the approximate relative value satisfies one of the following numerical relationships:
与所述参考相对数值相等；is equal to said reference relative value;
与所述参考相对数值之和为0；The sum of the values relative to the reference is 0;
与所述参考相对数值之和为P；The sum of the relative values with the reference is P;
与所述参考相对数值之差为-P；The difference from said reference relative value is -P;
根据第三映射关系确定所述参考相对数值对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative value according to the third mapping relationship;
根据所述近似相对数值满足的数值关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The sign of the real part and the imaginary part of the reference adjustment factor is adjusted according to the numerical relationship satisfied by the approximate relative value to obtain the phase adjustment factor.
第二方面，本发明实施例还提供了一种信号的相位对齐装置，包括：In the second aspect, the embodiment of the present invention also provides a signal phase alignment device, including:
获取模块，用于获取发射信号与所述发射信号对应反馈信号的共轭的乘积；An acquisition module, configured to acquire the product of the conjugate of the transmit signal and the feedback signal corresponding to the transmit signal;
确定模块，用于将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；a determining module, configured to determine an imaginary part of the product as an approximate relative phase of the transmitted signal and the feedback signal;
对齐模块，用于根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。An alignment module, configured to determine a phase adjustment factor according to the approximate relative phase, and the phase adjustment factor is used to align the phase of the transmit signal with the feedback signal.
第三方面，本发明实施例还提供了一种电子设备，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；其特征在于，所述处理器，用于读取存储器中的程序实现如第一方面中任一项所述的信号的相位对齐方法中的步骤。In the third aspect, the embodiment of the present invention also provides an electronic device, including: a transceiver, a memory, a processor, and a program stored on the memory and operable on the processor; it is characterized in that the processor is used to read the program in the memory to implement the steps in the phase alignment method for signals according to any one of the first aspect.
第四方面，本发明实施例还提供了一种可读存储介质，用于存储程序，其特征在于，所述程序被处理器执行时实现如第一方面中任一项所述的信号的相位对齐方法中的步骤。In a fourth aspect, an embodiment of the present invention further provides a readable storage medium for storing a program, wherein when the program is executed by a processor, the steps in the signal phase alignment method described in any one of the first aspect are implemented.
本发明提供一种信号的相位对齐方法、装置及相关设备，包括：获取发射信号与所述发射信号对应反馈信号的共轭的乘积；将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。本发明实施例提供的一种信号的相位对齐方法，通过发射信号和反馈信号的实部与虚部进行运算，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。The present invention provides a signal phase alignment method, device and related equipment, comprising: obtaining a product of a transmit signal and a conjugate of a feedback signal corresponding to the transmit signal; determining an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal; determining a phase adjustment factor according to the approximate relative phase, and the phase adjustment factor is used to align the phase of the transmit signal with the feedback signal. The embodiment of the present invention provides a signal phase alignment method, which avoids the process of calculating the angle of the transmitted signal and the feedback signal by performing calculations on the real part and the imaginary part of the transmitted signal and the feedback signal, and improves the alignment efficiency of the transmitter and the receiver.
附图说明Description of drawings
图1为本发明实施例中提供的一种信号的相位对齐方法的流程示意图；FIG. 1 is a schematic flowchart of a signal phase alignment method provided in an embodiment of the present invention;
图2为本发明实施例中发射与接收系统的结构示意图；FIG. 2 is a schematic structural diagram of a transmitting and receiving system in an embodiment of the present invention;
图3为本发明实施例中提供的一种信号的相位对齐装置的结构示意图；FIG. 3 is a schematic structural diagram of a signal phase alignment device provided in an embodiment of the present invention;
图4为本发明实施例中提供的一种电子设备的结构示意图。FIG. 4 is a schematic structural diagram of an electronic device provided in an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second" and so on are generally of one type, and the number of objects is not limited. For example, there can be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的一种功率对齐的方法进行详细地说明。A method for power alignment provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.
参阅图1，图1为发明实施例提供的一种信号的相位对齐方法，包括：Referring to Fig. 1, Fig. 1 is a signal phase alignment method provided by an embodiment of the invention, including:
步骤101、获取发射信号与所述发射信号对应反馈信号的共轭的乘积。Step 101. Obtain a product of a transmit signal and a conjugate of a feedback signal corresponding to the transmit signal.
步骤102、将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位。Step 102. Determine the imaginary part of the product as an approximate relative phase between the transmit signal and the feedback signal.
步骤103、根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。Step 103. Determine a phase adjustment factor according to the approximate relative phase, where the phase adjustment factor is used to make the phase alignment of the transmit signal and the feedback signal.
在本实施例中，在发射机的DFE算法中，通常都需要对发射机发送的发射信号与接收机接收的反馈信号进行比较，由于发射与接收系统中，模拟电路的增益、相位和时延都无法获得，因此需要将反馈信号在幅度、相位和时延上与发射信号进行对齐。目前对于发射信号和反馈信号信号的相位对齐一般是在芯片中用数字硬件逻辑实现，此方法需要对发射信号和反馈信号的值进行通过逻辑进行角度计算处理，在发射信号和反馈信号为复数的情况下，会需要使用到CORDIC算法，消耗资源比较大，因此在本实施例中，通过对复数的实部和虚部进行运算，从而直接获取计算结果，通过计算结果来使得反馈信号与发射信号进行对齐，避免了大量的运算消耗，大幅降低了相位对齐硬件实现的逻辑资源。In this embodiment, in the DFE algorithm of the transmitter, it is usually necessary to compare the transmission signal sent by the transmitter with the feedback signal received by the receiver. Since the gain, phase and time delay of the analog circuit cannot be obtained in the transmission and reception systems, it is necessary to align the feedback signal with the transmission signal in terms of amplitude, phase and time delay. At present, the phase alignment of the transmit signal and the feedback signal signal is generally implemented in the chip with digital hardware logic. This method requires the value of the transmit signal and the feedback signal to be calculated and processed through logic. In the case of complex numbers of the transmit signal and the feedback signal, the CORDIC algorithm will be used, which consumes a lot of resources. Therefore, in this embodiment, the calculation result is directly obtained by calculating the real part and the imaginary part of the complex number, and the feedback signal is aligned with the transmit signal through the calculation result, avoiding a lot of calculation consumption and greatly reducing the logic implemented by phase alignment hardware. resources.
参阅图2，图2为本发明实施例中发射与反馈系统的结构示意图，在图2中，LO1用于指示前述第一本地振荡器(LOCAL OSCILLATOR，LO)，DCI1用于指示发射机中同相分量(In-phase)对应的DC偏置，DCQ1用于指示发射机中正交分量(quadrature)对应的DC偏置，k1用于指示发射机中存在的不完全正交损益，g1用于指示发射机中存在的增益不平衡损益，DCI1、DCQ1、k1以及g1统称为发射机的I/Q失配和DC失配。同理，图2中，LO2用于指示前述第二本地振荡器，DCI2用于指示接收机中同相分量(In-phase)对应的DC偏置，DCQ2用于指示接收机中正交分量(quadrature)对应的DC偏置，k2用于指示接收机中存在的不完全正交损益，g2用于指示接收机中存在的增益不平衡损益，DCI2、DCQ2、k2以及g2统称为接收机的I/Q失配和DC失配。Referring to FIG. 2, FIG. 2 is a schematic structural diagram of the transmission and feedback system in the embodiment of the present invention. In FIG. 2, LO1 is used to indicate the aforementioned first local oscillator (LOCAL OSCILLATOR, LO), DCI1 is used to indicate the DC offset corresponding to the in-phase component (In-phase) in the transmitter, DCQ1 is used to indicate the DC offset corresponding to the quadrature component (quadrature) in the transmitter, k1 is used to indicate the incomplete quadrature gain and loss existing in the transmitter, and g1 is used to indicate the gain imbalance existing in the transmitter Gains and losses, DCI1, DCQ1, k1, and g1 are collectively referred to as the transmitter's I/Q mismatch and DC mismatch. Similarly, in FIG. 2 , LO2 is used to indicate the aforementioned second local oscillator, DCI2 is used to indicate the DC offset corresponding to the in-phase component (In-phase) in the receiver, DCQ2 is used to indicate the DC offset corresponding to the quadrature component (quadrature) in the receiver, k2 is used to indicate the incomplete quadrature loss in the receiver, and g2 is used to indicate the gain imbalance loss in the receiver. DCI2, DCQ2, k2, and g2 are collectively referred to as the I/Q mismatch and DC mismatch of the receiver.
具体地，发射机发送发射信号，接收机接收根据发射信号生成的反馈信号，其中，发射信号和反馈信号可以体现为复数信号，其中复数包括实部和虚部，具体地，发射信号X上的某个点可以表示为x＝a+jb，反馈信号Y上的某个点可以表示为y＝c+jd，其中a为第一实部，b为第一虚部，c为第二实部，d为第二虚部。Specifically, the transmitter sends a transmission signal, and the receiver receives a feedback signal generated according to the transmission signal, wherein the transmission signal and the feedback signal can be embodied as a complex signal, wherein the complex number includes a real part and an imaginary part, specifically, a certain point on the transmission signal X can be expressed as x=a+jb, and a certain point on the feedback signal Y can be expressed as y=c+jd, where a is the first real part, b is the first imaginary part, c is the second real part, and d is the second imaginary part.
可选的，获取发射信号与所述发射信号对应反馈信号的共轭的乘积之前，还包括：Optionally, before obtaining the product of the conjugate of the transmitted signal and the corresponding feedback signal of the transmitted signal, it may further include:
对所述发射信号和所述反馈信号进行幅度对齐。Amplitude alignment is performed on the transmit signal and the feedback signal.
在本实施例中，在获取发射信号与所述发射信号对应反馈信号的共轭的乘积之前还可以在幅度上对发射信号和反馈信号进行对齐。In this embodiment, the transmit signal and the feedback signal may also be aligned in amplitude before obtaining the product of the transmit signal and the conjugate of the transmit signal corresponding to the feedback signal.
基于此，在本实施例中，x还可以表示为x＝r·exp(jw)，y＝r·exp(jw+Δ)，其中，r为x和y的模，发射信号和反馈信号的共轭相乘可以表示为x·y*＝r2·exp(-Δj)＝r2·{cos(Δ)+j·sin(-Δ)}。Based on this, in this embodiment, x can also be expressed as x=r·exp(jw), y=r·exp(jw+Δ), where r is the modulus of x and y, and the conjugate multiplication of the transmitted signal and the feedback signal can be expressed as x·y*=r 2 ·exp(-Δj)=r 2 ·{cos(Δ)+j·sin(-Δ)}.
进一步地，应当理解，当发射信号与反馈信号相位对齐时，有相对相位Δ趋近于0时，此时近似有Δ＝sin(Δ)，从而，可以将共轭乘积的虚部确定为发射信号与所述反馈信号的近似相对相位。例如，对于N个采样点，可以确定：Further, it should be understood that when the phases of the transmit signal and the feedback signal are aligned, when the relative phase Δ approaches 0, then approximately Δ=sin(Δ), thus, the imaginary part of the conjugate product can be determined as the approximate relative phase of the transmit signal and the feedback signal. For example, for N sampling points, it can be determined that:
由此，较之现有技术中，先通过求取x对应的相位，通过求取y对应的相位，再通过求取两者之差来确定相对相位的实现方式，本实施例能够简化相对相位的获取方式，进而大幅降低了相位对齐硬件实现的逻辑资源，性能上的损失不大，即使存在损失，也可以通过更多的平均弥补回来。换言之，本实施例通过发射信号和反馈信号的共轭相乘运算来获取近似相对相位，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。Thus, compared with the prior art, the first pass Find the phase corresponding to x, by Calculate the phase corresponding to y, and then determine the implementation method of the relative phase by calculating the difference between the two. This embodiment can simplify the acquisition method of the relative phase, thereby greatly reducing the logic resources of the phase alignment hardware implementation, and the loss in performance is small. Even if there is a loss, it can be compensated by more averages. In other words, in this embodiment, the approximate relative phase is obtained by conjugate multiplication of the transmit signal and the feedback signal, avoiding the angle calculation process of the transmit signal and the feedback signal, and improving the alignment efficiency of the transmitter and the receiver.
在本实施例中，可以基于上述近似的方式来逐次确定相位调节因子直到实现相位对齐，也可以先基于现有技术来逐次确定相位调节因子直到相对相位小于预设阈值时，再采用上述近似的方式来逐次确定相位调节因子直到实现相位对齐。In this embodiment, the phase adjustment factor can be determined successively based on the above approximation until the phase alignment is achieved, or the phase adjustment factor can be determined successively based on the prior art until the relative phase is less than the preset threshold, and then the phase adjustment factor can be successively determined by the above approximation until the phase alignment is achieved.
此外，应当理解，还可以通过判断共轭乘积的虚部来判断Δ的符号，也即，发射信号与反馈信号之间的相位大小关系，例如，当Δ为正时(例如，共轭乘积的虚部落入第四象限)，反馈信号的相位大于发射信号的相位，当Δ为负时(例如，共轭乘积的虚部落入第一象限)，反馈信号的相位小于发射信号的相位，从而可以基于该判断来调整相位的旋转以实现发射信号和反馈信号的相位对齐。In addition, it should be understood that the sign of Δ can also be judged by judging the imaginary part of the conjugate product, that is, the phase relationship between the transmit signal and the feedback signal. For example, when Δ is positive (for example, the imaginary of the conjugate product falls into the fourth quadrant), the phase of the feedback signal is greater than the phase of the transmit signal;
进一步地，在本实施例中，还可以仅存储参考象限(例如，第一象限)所对应的cos值与sin值，通过结合不同象限之间的数学关系来确定近似相对相位对应的cos值与sin值，进而来得到相位调节因子，以降低对存储资源的需求。Further, in this embodiment, it is also possible to store only the cos value and sin value corresponding to the reference quadrant (for example, the first quadrant), and determine the cos value and sin value corresponding to the approximate relative phase by combining the mathematical relationship between different quadrants, and then obtain the phase adjustment factor, so as to reduce the demand for storage resources.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：Optionally, the determining the phase adjustment factor according to the approximate relative phase includes:
确定所述近似相对相位在参考象限中对应的参考相对相位，其中，所述近似相对相位的取值范围为[-π，π]，所述近似相对相位满足以下相位关系之一：Determine the reference relative phase corresponding to the approximate relative phase in the reference quadrant, wherein the value range of the approximate relative phase is [-π, π], and the approximate relative phase satisfies one of the following phase relationships:
与所述参考相对相位相等；is equal to said reference relative phase;
与所述参考相对相位之和为0；The sum of relative phases with the reference is 0;
与所述参考相对相位之和为π；The sum of relative phases with the reference is π;
与所述参考相对相位之差为-π；The difference from the relative phase of the reference is -π;
根据第一映射关系确定所述参考相对相位对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative phase according to the first mapping relationship;
根据所述近似相对相位满足的相位关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The signs of the real part and the imaginary part of the reference adjustment factor are adjusted according to the phase relationship satisfied by the approximate relative phase to obtain the phase adjustment factor.
具体地，当参考象限为第一象限时，有参考相对相位范围为[0，π/2]，若近似相对相位取值为π/4，有参考相位π/4，根据预设的第一映射关系来确定参考相位π/4对应的参考调节因子cosβ+isinβ，由于近似相对相位与参考相位相等且均位于第一象限，从而有相位调节因子cosβ+isinβ；又例如，若近似相对相位取值为3π/4，有参考相位π/4，根据预设的第一映射关系来确定参考相位π/4对应的参考调节因子cosβ+isinβ，由于近似相对相位位于第二象限而参考相位位于第一象限(二者之和为π)，从而有相位调节因子-cosβ+isinβ；又例如，若近似相对相位取值为-π/4，有参考相位π/4，根据预设的第一映射关系来确定参考相位π/4对应的参考调节因子cosβ+isinβ，由于近似相对相位位于第四象限而参考相位位于第一象限(二者之差为0)，从而有相位调节因子cosβ-isinβ；又例如，若近似相对相位取值为-3π/4，有参考相位π/4，根据预设的第一映射关系来确定参考相位π/4对应的参考调节因子cosβ+isinβ，由于近似相对相位位于第三象限而参考相位位于第一象限(二者之差为-π)，从而有相位调节因子-cosβ-isinβ。其中，第一映射关系可以实现为预设的查找表，从而可以基于确定的参考相位来查找得到对应的参考调节因子，具体地，查找表还可以分别实现为sin值查找表和cos查找表，从而可以基于确定的参考相位来查找得到对应的参考调节因子的实部与虚部。此外，应当理解，近似相对相位的的取值范围为[-π，π]仅是一种示例，基于数学关系还可以有其他变形，例如，还可以实现为[0，2π]等。Specifically, when the reference quadrant is the first quadrant, the range of the reference relative phase is [0, π/2]. If the value of the approximate relative phase is π/4, there is a reference phase π/4, and the reference adjustment factor cosβ+isinβ corresponding to the reference phase π/4 is determined according to the preset first mapping relationship. Since the approximate relative phase is equal to the reference phase and both are located in the first quadrant, there is a phase adjustment factor cosβ+isinβ; The first mapping relationship is used to determine the reference adjustment factor cosβ+isinβ corresponding to the reference phase π/4. Since the approximate relative phase is located in the second quadrant and the reference phase is located in the first quadrant (the sum of the two is π), there is a phase adjustment factor -cosβ+isinβ; for another example, if the approximate relative phase value is -π/4, there is a reference phase π/4. The reference adjustment factor cosβ+isinβ corresponding to the reference phase π/4 is determined according to the preset first mapping relationship. Since the approximate relative phase is located in the fourth quadrant and the reference phase is located in the first quadrant ( The difference between the two is 0), so there is a phase adjustment factor cosβ-isinβ; for another example, if the approximate relative phase is -3π/4, there is a reference phase π/4, and the reference adjustment factor cosβ+isinβ corresponding to the reference phase π/4 is determined according to the preset first mapping relationship. Wherein, the first mapping relationship can be implemented as a preset lookup table, so that the corresponding reference adjustment factor can be found based on the determined reference phase. Specifically, the lookup table can also be implemented as a sin value lookup table and a cos lookup table, so that the real part and the imaginary part of the corresponding reference adjustment factor can be found based on the determined reference phase. In addition, it should be understood that the value range of the approximate relative phase is [-π, π] is only an example, and there may be other deformations based on mathematical relationships, for example, it may also be realized as [0, 2π], etc.
进一步地，考虑到上述基于近似相对相位确定参考相位等步骤涉及到π的运算，为了进一步降低运算硬件的复杂度以及对存储资源的需求，还可以对近似相对相位进行线性或者非线性的单调映射，来实现角度到数值的映射，以避免π的运算。Further, considering that the above-mentioned steps of determining the reference phase based on the approximate relative phase involve the operation of π, in order to further reduce the complexity of the computing hardware and the demand for storage resources, linear or non-linear monotonic mapping can also be performed on the approximate relative phase to realize the mapping from angle to value, so as to avoid the operation of π.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：根据第二映射关系确定所述近似相对相位对应的近似相对数值，其中，所述近似相对数值的取值范围为[-P，P]；Optionally, the determining the phase adjustment factor according to the approximate relative phase includes: determining an approximate relative value corresponding to the approximate relative phase according to a second mapping relationship, wherein the value range of the approximate relative value is [-P, P];
确定所述近似相对数值在参考数值范围中对应的参考相对数值，其中，所述参考数值范围与所述参考象限对应的相位范围具有所述第二映射关系，所述参考相对数值与所述参考相对相位具有所述第二映射关系，所述近似相对数值满足以下数值关系之一：Determine the reference relative value corresponding to the approximate relative value in the reference value range, wherein the reference value range and the phase range corresponding to the reference quadrant have the second mapping relationship, the reference relative value and the reference relative phase have the second mapping relationship, and the approximate relative value satisfies one of the following numerical relationships:
与所述参考相对数值相等；is equal to said reference relative value;
与所述参考相对数值之和为0；The sum of the values relative to the reference is 0;
与所述参考相对数值之和为P；The sum of the relative values with the reference is P;
与所述参考相对数值之差为-P；The difference from said reference relative value is -P;
根据第三映射关系确定所述参考相对数值对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative value according to the third mapping relationship;
根据所述近似相对数值满足的数值关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The sign of the real part and the imaginary part of the reference adjustment factor is adjusted according to the numerical relationship satisfied by the approximate relative value to obtain the phase adjustment factor.
例如，第二映射关系可以实现为放大2/π倍，从而上述示例中近似相对相位的的取值范围为[-π，π]可以变换为参考数值范围[-2，2]，此时，P＝2，参考象限为第一象限时，有参考数值范围[0，1]，若近似相对相位取值为π/4，有近似相对数值1/2，参考数值1/2，根据预设的第三映射关系来确定参考数值1/2对应的参考调节因子cosβ+isinβ，由于近似相对数值与参考数值相等，从而有相位调节因子cosβ+isinβ；又例如，若近似相对相位取值为3π/4，有近似相对数值3/2，参考数值1/2，根据预设的第三映射关系来确定参考数值1/2对应的参考调节因子cosβ+isinβ，由于近似相对数值与参考数值之和为2，从而有相位调节因子-cosβ+isinβ；又例如，若近似相对相位取值为-π/4，有近似相对数值-1/2，参考数值1/2，根据预设的第三映射关系来确定参考数值1/2对应的参考调节因子cosβ+isinβ，由于近似相对数值与参考相位之和为0，从而有相位调节因子cosβ-isinβ；又例如，若近似相对相位取值为-3π/4，有近似相对数值-3/2，参考数值1/2，根据预设的第三映射关系来确定参考数值1/2对应的参考调节因子cosβ+isinβ，由于近似相对数值与参考数值之差为-2，从而有相位调节因子-cosβ-isinβ。其中，第三映射关系可以实现为预设的查找表，从而可以基于确定的参考数值来查找得到对应的参考调节因子，具体地，查找表还可以分别实现为sin值查找表和cos查找表，从而可以基于确定的参考相位来查找得到对应的参考调节因子的实部与虚部。应当理解，第三映射关系对应的查找表可以基于第二映射关系和第一映射关系对应的查找表确定得到，具体地，两个查找表的索引之间存在第二映射关系或者基于第二映射关系确定得到。For example, the second mapping relationship can be realized as amplified by 2/π times, so that the value range of the approximate relative phase in the above example is [-π, π] and can be transformed into a reference value range [-2, 2]. At this time, P=2, when the reference quadrant is the first quadrant, there is a reference value range [0, 1]. The approximate relative value is equal to the reference value, so there is a phase adjustment factor cosβ+isinβ; another example, if the approximate relative value is 3π/4, there is an approximate relative value 3/2, and a reference value 1/2, and the reference adjustment factor cosβ+isinβ corresponding to the reference value 1/2 is determined according to the preset third mapping relationship. , reference value 1/2, the reference adjustment factor cosβ+isinβ corresponding to the reference value 1/2 is determined according to the preset third mapping relationship, since the sum of the approximate relative value and the reference phase is 0, there is a phase adjustment factor cosβ-isinβ; another example, if the approximate relative phase value is -3π/4, there is an approximate relative value -3/2, and the reference value 1/2 is determined according to the preset third mapping relationship. is -2, so there is a phase adjustment factor -cosβ-isinβ. Wherein, the third mapping relationship can be implemented as a preset lookup table, so that the corresponding reference adjustment factor can be found based on the determined reference value. Specifically, the lookup table can also be implemented as a sin value lookup table and a cos lookup table, so that the real part and the imaginary part of the corresponding reference adjustment factor can be obtained based on the determined reference phase. It should be understood that the lookup table corresponding to the third mapping relationship may be determined based on the second mapping relationship and the lookup table corresponding to the first mapping relationship, specifically, the second mapping relationship exists between the indexes of the two lookup tables or determined based on the second mapping relationship.
本发明提供一种信号的相位对齐方法，包括：获取发射信号与所述发射信号对应反馈信号的共轭的乘积；将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。本发明实施例提供的一种信号的相位对齐方法，通过发射信号和反馈信号的实部与虚部进行运算，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。The present invention provides a signal phase alignment method, comprising: obtaining a product of a conjugate of a transmit signal and a feedback signal corresponding to the transmit signal; determining an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal; determining a phase adjustment factor according to the approximate relative phase, and the phase adjustment factor is used to make the phase alignment of the transmit signal and the feedback signal. The embodiment of the present invention provides a signal phase alignment method, which avoids the process of calculating the angle of the transmitted signal and the feedback signal by performing calculations on the real part and the imaginary part of the transmitted signal and the feedback signal, and improves the alignment efficiency of the transmitter and the receiver.
参阅图3，图3为本发明实施例提供的一种信号的相位对齐装置的结构图。如图3所示，一种信号的相位对齐的装置，包括：Referring to FIG. 3 , FIG. 3 is a structural diagram of a signal phase alignment device provided by an embodiment of the present invention. As shown in Figure 3, a device for phase alignment of signals includes:
获取模块310，用于获取发射信号与所述发射信号对应反馈信号的共轭的乘积；An acquisition module 310, configured to acquire the product of the conjugate of the transmit signal and the feedback signal corresponding to the transmit signal;
确定模块320，用于将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；A determining module 320, configured to determine an imaginary part of the product as an approximate relative phase between the transmit signal and the feedback signal;
对齐模块330，用于根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。The alignment module 330 is configured to determine a phase adjustment factor according to the approximate relative phase, and the phase adjustment factor is used to make phase alignment of the transmit signal and the feedback signal.
可选的，还包括：Optionally, also include:
幅度对齐模块，用于对所述发射信号和所述反馈信号进行幅度对齐。An amplitude alignment module, configured to perform amplitude alignment on the transmit signal and the feedback signal.
可选的，所述对齐模块330还包括：Optionally, the alignment module 330 also includes:
第一确定子模块，用于确定所述近似相对相位在参考象限中对应的参考相对相位，其中，所述近似相对相位的取值范围为[-π，π]，所述近似相对相位满足以下相位关系之一：The first determination submodule is used to determine the reference relative phase corresponding to the approximate relative phase in the reference quadrant, wherein the value range of the approximate relative phase is [-π, π], and the approximate relative phase satisfies one of the following phase relationships:
与所述参考相对相位相等；is equal to said reference relative phase;
与所述参考相对相位之和为0；The sum of relative phases with the reference is 0;
与所述参考相对相位之和为π；The sum of relative phases with the reference is π;
与所述参考相对相位之差为-π；The difference from the relative phase of the reference is -π;
第二确定子模块，用于根据第一映射关系确定所述参考相对相位对应的参考调节因子；A second determining submodule, configured to determine a reference adjustment factor corresponding to the reference relative phase according to the first mapping relationship;
调整子模块，用于根据所述近似相对相位满足的相位关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The adjustment sub-module is configured to adjust the signs of the real part and the imaginary part of the reference adjustment factor according to the phase relationship satisfied by the approximate relative phase, to obtain the phase adjustment factor.
可选的，所述第一确定子模块具体用于根据第二映射关系确定所述近似相对相位对应的近似相对数值，其中，所述近似相对数值的取值范围为[-P，P]；Optionally, the first determining submodule is specifically configured to determine an approximate relative value corresponding to the approximate relative phase according to the second mapping relationship, where the value range of the approximate relative value is [-P, P];
确定所述近似相对数值在参考数值范围中对应的参考相对数值，其中，所述参考数值范围与所述参考象限对应的相位范围具有所述第二映射关系，所述参考相对数值与所述参考相对相位具有所述第二映射关系，所述近似相对数值满足以下数值关系之一：Determine the reference relative value corresponding to the approximate relative value in the reference value range, wherein the reference value range and the phase range corresponding to the reference quadrant have the second mapping relationship, the reference relative value and the reference relative phase have the second mapping relationship, and the approximate relative value satisfies one of the following numerical relationships:
与所述参考相对数值相等；is equal to said reference relative value;
与所述参考相对数值之和为0；The sum of the values relative to the reference is 0;
与所述参考相对数值之和为P；The sum of the relative values with the reference is P;
与所述参考相对数值之差为-P；The difference from said reference relative value is -P;
所述第二确定子模块具体用于根据第三映射关系确定所述参考相对数值对应的参考调节因子；The second determination submodule is specifically configured to determine the reference adjustment factor corresponding to the reference relative value according to the third mapping relationship;
所述调整子模块具体用于根据所述近似相对数值满足的数值关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The adjustment sub-module is specifically configured to adjust the signs of the real part and the imaginary part of the reference adjustment factor according to the numerical relationship satisfied by the approximate relative value, so as to obtain the phase adjustment factor.
本发明提供一种信号的相位对齐装置，包括：获取模块，用于获取发射信号与所述发射信号对应反馈信号的共轭的乘积；确定模块，用于将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；对齐模块，用于根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。本发明实施例提供的一种信号的相位对齐方法，通过发射信号和反馈信号的实部与虚部进行运算，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。The present invention provides a signal phase alignment device, comprising: an acquisition module, configured to acquire a product of a conjugate of a transmit signal and a feedback signal corresponding to the transmit signal; a determination module, configured to determine an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal; an alignment module, configured to determine a phase adjustment factor according to the approximate relative phase, and the phase adjustment factor is used to align the phase of the transmit signal with the feedback signal. The embodiment of the present invention provides a signal phase alignment method, which avoids the process of calculating the angle of the transmitted signal and the feedback signal by performing calculations on the real part and the imaginary part of the transmitted signal and the feedback signal, and improves the alignment efficiency of the transmitter and the receiver.
本发明实施例还提供一种通信设备。请参见图4，通信设备可以包括处理器401、存储器402及存储在存储器402上并可在处理器401上运行的程序4021。The embodiment of the present invention also provides a communication device. Referring to FIG. 4 , the communication device may include a processor 401 , a memory 402 and a program 4021 stored in the memory 402 and executable on the processor 401 .
程序4021被处理器401执行时可实现图1对应的方法实施例中的任意步骤：When the program 4021 is executed by the processor 401, any step in the method embodiment corresponding to FIG. 1 can be realized:
获取发射信号与所述发射信号对应反馈信号的共轭的乘积；obtaining the product of the conjugate of the transmit signal and the feedback signal corresponding to the transmit signal;
将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；determining an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal;
根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。A phase adjustment factor is determined based on the approximate relative phase, the phase adjustment factor being used to phase align the transmit signal with the feedback signal.
可选的，所述获取发射信号与所述发射信号对应反馈信号的共轭的乘积之前，还包括：Optionally, before obtaining the product of the conjugate of the transmitted signal and the corresponding feedback signal of the transmitted signal, the method further includes:
对所述发射信号和所述反馈信号进行幅度对齐。Amplitude alignment is performed on the transmit signal and the feedback signal.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：Optionally, the determining the phase adjustment factor according to the approximate relative phase includes:
确定所述近似相对相位在参考象限中对应的参考相对相位，其中，所述近似相对相位的取值范围为[-π，π]，所述近似相对相位满足以下相位关系之一：Determine the reference relative phase corresponding to the approximate relative phase in the reference quadrant, wherein the value range of the approximate relative phase is [-π, π], and the approximate relative phase satisfies one of the following phase relationships:
与所述参考相对相位相等；is equal to said reference relative phase;
与所述参考相对相位之和为0；The sum of relative phases with the reference is 0;
与所述参考相对相位之和为π；The sum of relative phases with the reference is π;
与所述参考相对相位之差为-π；The difference from the relative phase of the reference is -π;
根据第一映射关系确定所述参考相对相位对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative phase according to the first mapping relationship;
根据所述近似相对相位满足的相位关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The signs of the real part and the imaginary part of the reference adjustment factor are adjusted according to the phase relationship satisfied by the approximate relative phase to obtain the phase adjustment factor.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：根据第二映射关系确定所述近似相对相位对应的近似相对数值，其中，所述近似相对数值的取值范围为[-P，P]；Optionally, the determining the phase adjustment factor according to the approximate relative phase includes: determining an approximate relative value corresponding to the approximate relative phase according to a second mapping relationship, wherein the value range of the approximate relative value is [-P, P];
确定所述近似相对数值在参考数值范围中对应的参考相对数值，其中，所述参考数值范围与所述参考象限对应的相位范围具有所述第二映射关系，所述参考相对数值与所述参考相对相位具有所述第二映射关系，所述近似相对数值满足以下数值关系之一：Determine the reference relative value corresponding to the approximate relative value in the reference value range, wherein the reference value range and the phase range corresponding to the reference quadrant have the second mapping relationship, the reference relative value and the reference relative phase have the second mapping relationship, and the approximate relative value satisfies one of the following numerical relationships:
与所述参考相对数值相等；is equal to said reference relative value;
与所述参考相对数值之和为0；The sum of the values relative to the reference is 0;
与所述参考相对数值之和为P；The sum of the relative values with the reference is P;
与所述参考相对数值之差为-P；The difference from said reference relative value is -P;
根据第三映射关系确定所述参考相对数值对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative value according to the third mapping relationship;
根据所述近似相对数值满足的数值关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The sign of the real part and the imaginary part of the reference adjustment factor is adjusted according to the numerical relationship satisfied by the approximate relative value to obtain the phase adjustment factor.
本发明实施例提供的一种信号的相位对齐方法，通过发射信号和反馈信号的实部与虚部进行运算，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。本领域普通技术人员可以理解实现上述实施例方法的全部或者部分步骤是可以通过程序指令相关的硬件来完成，所述的程序可以存储于一可读取介质中。The embodiment of the present invention provides a signal phase alignment method, which avoids the process of calculating the angle of the transmitted signal and the feedback signal by performing calculations on the real part and the imaginary part of the transmitted signal and the feedback signal, and improves the alignment efficiency of the transmitter and the receiver. Those skilled in the art can understand that all or part of the steps for implementing the methods of the above embodiments can be completed by program instructions related hardware, and the program can be stored in a readable medium.
本发明实施例还提供一种可读存储介质，所述可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时可实现上述图1对应的方法实施例中的步骤：An embodiment of the present invention also provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the above method embodiment corresponding to FIG. 1 can be implemented:
获取发射信号与所述发射信号对应反馈信号的共轭的乘积；obtaining the product of the conjugate of the transmit signal and the feedback signal corresponding to the transmit signal;
将所述乘积的虚部确定为所述发射信号与所述反馈信号的近似相对相位；determining an imaginary part of the product as an approximate relative phase of the transmit signal and the feedback signal;
根据所述近似相对相位确定相位调节因子，所述相位调节因子用于使得所述发射信号与所述反馈信号相位对齐。A phase adjustment factor is determined based on the approximate relative phase, the phase adjustment factor being used to phase align the transmit signal with the feedback signal.
可选的，所述获取发射信号与所述发射信号对应反馈信号的共轭的乘积之前，还包括：Optionally, before obtaining the product of the conjugate of the transmitted signal and the corresponding feedback signal of the transmitted signal, the method further includes:
对所述发射信号和所述反馈信号进行幅度对齐。Amplitude alignment is performed on the transmit signal and the feedback signal.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：Optionally, the determining the phase adjustment factor according to the approximate relative phase includes:
确定所述近似相对相位在参考象限中对应的参考相对相位，其中，所述近似相对相位的取值范围为[-π，π]，所述近似相对相位满足以下相位关系之一：Determine the reference relative phase corresponding to the approximate relative phase in the reference quadrant, wherein the value range of the approximate relative phase is [-π, π], and the approximate relative phase satisfies one of the following phase relationships:
与所述参考相对相位相等；is equal to said reference relative phase;
与所述参考相对相位之和为0；The sum of relative phases with the reference is 0;
与所述参考相对相位之和为π；The sum of relative phases with the reference is π;
与所述参考相对相位之差为-π；The difference from the relative phase of the reference is -π;
根据第一映射关系确定所述参考相对相位对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative phase according to the first mapping relationship;
根据所述近似相对相位满足的相位关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The signs of the real part and the imaginary part of the reference adjustment factor are adjusted according to the phase relationship satisfied by the approximate relative phase to obtain the phase adjustment factor.
可选的，所述根据所述近似相对相位确定相位调节因子，包括：根据第二映射关系确定所述近似相对相位对应的近似相对数值，其中，所述近似相对数值的取值范围为[-P，P]；Optionally, the determining the phase adjustment factor according to the approximate relative phase includes: determining an approximate relative value corresponding to the approximate relative phase according to a second mapping relationship, wherein the value range of the approximate relative value is [-P, P];
确定所述近似相对数值在参考数值范围中对应的参考相对数值，其中，所述参考数值范围与所述参考象限对应的相位范围具有所述第二映射关系，所述参考相对数值与所述参考相对相位具有所述第二映射关系，所述近似相对数值满足以下数值关系之一：Determine the reference relative value corresponding to the approximate relative value in the reference value range, wherein the reference value range and the phase range corresponding to the reference quadrant have the second mapping relationship, the reference relative value and the reference relative phase have the second mapping relationship, and the approximate relative value satisfies one of the following numerical relationships:
与所述参考相对数值相等；is equal to said reference relative value;
与所述参考相对数值之和为0；The sum of the values relative to the reference is 0;
与所述参考相对数值之和为P；The sum of the relative values with the reference is P;
与所述参考相对数值之差为-P；The difference from said reference relative value is -P;
根据第三映射关系确定所述参考相对数值对应的参考调节因子；determining a reference adjustment factor corresponding to the reference relative value according to the third mapping relationship;
根据所述近似相对数值满足的数值关系调整所述参考调节因子实部与虚部的符号，得到所述相位调节因子。The sign of the real part and the imaginary part of the reference adjustment factor is adjusted according to the numerical relationship satisfied by the approximate relative value to obtain the phase adjustment factor.
本发明实施例提供的一种信号的相位对齐方法，通过发射信号和反馈信号的实部与虚部进行运算，避免了对发射信号和反馈信号进行角度计算的过程，提高了发射机和接收机的对齐效率。The embodiment of the present invention provides a signal phase alignment method, which avoids the process of calculating the angle of the transmitted signal and the feedback signal by performing calculations on the real part and the imaginary part of the transmitted signal and the feedback signal, and improves the alignment efficiency of the transmitter and the receiver.
本申请实施例的计算机可读存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是但不限于电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。The computer-readable storage medium in the embodiments of the present application may use any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer diskette, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium other than a computer readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
存储介质上包含的程序代码可以用任何适当的介质传输，包括但不限于无线、电线、光缆、RF等等，或者上述的任意合适的组合。Program code contained on a storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wires, optical cables, RF, etc., or any suitable combination of the above.
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或终端上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络包括局域网(LAN)或广域网(WAN)连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。Computer program code for carrying out the operations of the present application may be written in one or more programming languages, or combinations thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as the "C" language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. Where a remote computer is involved, the remote computer can be connected to the user computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or, alternatively, can be connected to an external computer (e.g. via the Internet using an Internet Service Provider).
以上所述是本发明实施例的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is a preferred implementation of the embodiment of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.
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