CN104267406A - Diffuse reflection laser ranging and high resolution imaging synchronous measurement photoelectric telescope system - Google Patents

Abstract

The invention relates to a photoelectric telescope system that can be used for diffuse reflection laser ranging and high-resolution imaging of space debris, and belongs to the technical field of photoelectric telescopes. Includes laser emission, echo reception, and adaptive optics imaging. Laser emission: the laser emitted by the laser enters the telescope through the laser emission optical path to emit to the space target; echo reception: the echo beam is received by the telescope, and then enters the echo reception and echo detection optical path, and the echo signal is generated and sent to the laser ranging control The distance value of the laser ranging is obtained after processing by the circuit and software; adaptive optics imaging: the light of the space target is received by the telescope, enters the adaptive optics system, is narrowed by the narrowing optical path, and then detected by the Hartmann sensor and wavefront processor The overall tilt of the wave front and the error of the wave front, the overall tilt of the wave front and the error data of the wave front are obtained, which are used to control the fine tracking system to correct the tilt of the wave front and control the deformable mirror to correct the error of the wave front, so as to obtain a high-resolution image.

Description

A photoelectric telescope system for simultaneous measurement of diffuse reflection laser ranging and high-resolution imaging

technical field

The invention belongs to the technical field of photoelectric telescopes, and relates to a photoelectric telescope system and a photoelectric telescope, in particular, it can be used for simultaneous measurement of space debris diffuse reflection laser ranging and high-resolution imaging.

Background technique

Satellite Laser Ranging (SLR) is a technology initiated by NASA in the early 1960s to use space technology to study geodynamics, geodesy, geophysics and astronomy, etc. means. It uses the measurement of the round-trip flight time of laser pulses between the observation station and the satellite, thereby calculating the distance from the satellite to the station. It is currently the most accurate technical method in space target distance measurement. Since the laser is monochromatic and has good directionality, the laser ranging can simultaneously provide the target's azimuth, height and distance information. Conventional laser ranging refers to satellite laser ranging for cooperative targets—space targets equipped with corner reflectors, such as Ajisai and Lageos-1 satellites. Currently, the ranging accuracy of Lageos satellites can reach the millimeter level.

Space debris is a non-cooperative target, and no corner reflectors are installed, so space debris can only be detected by diffuse reflection laser ranging technology. Due to the importance of precise orbit determination of space debris and some non-cooperative satellites, foreign countries attach great importance to the research on laser ranging of space debris and non-cooperative space targets, but there are only a few reports, most of which are kept secret. The U.S. military has conducted research in this area on the Starfire 3.5 m telescope in New Mexico. Australia's Electron Optical Systems (EOS) has developed a conventional active space debris laser observation system, which can accurately observe space debris with an orbital height of 1000 km and less than 10 cm. The measurement accuracy is better than 1 m, and the farthest detection distance is The distance is 3200 km, the orbit determination accuracy is 5 m, and the orbit prediction accuracy is 200 m (24 h). Domestically, the Shanghai Astronomical Observatory cooperated with the Eleventh Research Institute of China Electronics Technology Group Corporation to establish a high-energy and high-power Nd:YAG ranging test system at the Shanghai Sheshan Observatory, and began laser tracking and measurement of non-cooperative target satellites and space debris. In the distance test, the diffuse reflection laser ranging data of three rocket wreckages were obtained in July 2008, and the ranging accuracy was 70cm~80cm. In 2010, the Shanghai Observatory underwent a system upgrade and transformation, with a diffuse reflection laser ranging accuracy of 50cm~80cm, and a maximum measurement range of 1200km. In addition, Yunnan Astronomical Observatory has actively carried out research on diffuse reflection laser ranging of space debris since January 2008, and designed and implemented a 10Hz common optical path diffuse reflection laser ranging control system for the 1.2 m telescope of Yunnan Astronomical Observatory, including lasers, signal detectors and time measurement. The control of equipment, etc., and received the echo of the rocket wreckage on June 7, 2010. So far, several circles of space debris echoes have been obtained, and the ranging error range is 50~250cm.

Adaptive Optics (AO) technology is currently the most effective measure to compensate for the impact of atmospheric turbulence on telescopes. The adaptive optics system uses the wavefront detector to detect the wavefront error of the beam in real time, and then processes and converts these measurement data into the control signal of the adaptive optics system, controls the work of the deformable mirror, and corrects the wavefront error of the beam in real time, thereby compensating for the error caused by the atmosphere. The wavefront distortion caused by turbulence enables the telescope to obtain a target image close to the diffraction limit. Adaptive optics telescopes have been used in high-resolution imaging of targets. Page 943 of SPIE published in 2004 introduced that the 1.2m adaptive optics telescope of Yunnan Astronomical Observatory can be used for high-resolution imaging of targets, but this adaptive optics telescope is only used for high-resolution imaging and cannot be used for diffuse reflection (formerly a satellite )Laser Ranging.

The task of the space target detection system is to accurately detect and track important space targets, determine important target characteristics such as mission, size, shape, and orbital parameters of targets that may pose a threat to space systems; classify and distribute target characteristic data. Space target detection has important military value. It can not only help to determine the space capabilities of potential enemies, but also predict the orbit of space targets, and warn of possible collisions and attacks on own space systems. The analysis of target characteristics is the prerequisite for target detection and recognition. The deeper the target is known, the more information about the target can be obtained, and the ability to detect and identify it can be improved.

Contents of the invention

The technical problem solved by the invention is to overcome the deficiencies of the existing technology, integrate and innovate the existing technology, and provide a photoelectric telescope system that can be used for diffuse reflection laser ranging and high-resolution imaging at the same time.

The technical scheme that the present invention adopts is as follows:

A photoelectric telescope system for simultaneous measurement of diffuse reflection laser ranging and high-resolution imaging, including laser emission, echo reception and adaptive optics imaging, as follows:

Laser emission: The laser ranging control circuit and software send out a laser emission signal, and the laser in the Kud room enters the telescope through the laser emission path, and then emits to the space target through the telescope;

Echo reception: The echo beam from the space target is received by the telescope, and then enters the echo reception and echo detection optical path of the Kud room, and the echo signal is generated and sent to the laser ranging control circuit and software, and diffuse reflection is obtained after processing The distance value of laser ranging;

Adaptive optics imaging: The space target light is received by the telescope, enters the adaptive optics system in the Kudd room, and is narrowed by the narrowing optical path, and then the overall tilt and wavefront error are detected by the Hartmann sensor and wavefront processor , and after processing, the overall tilt of the wavefront and wavefront error data are given, which are used to control the fine tracking system to correct the wavefront tilt and control the deformable mirror to correct the wavefront error, thereby obtaining a high-resolution image.

The present invention also provides a photoelectric telescope for simultaneous measurement of diffuse reflection laser ranging and high-resolution imaging, including a telescope system, a diffuse reflection laser ranging system and an adaptive optics system; the telescope system includes a primary mirror, a secondary mirror, Folding axis optical path, lens barrel, ground-level frame, torque motor, tracking servo control system, the primary mirror and secondary mirror are installed in the lens barrel, the lens barrel and folded-axis optical path are installed on the ground-level frame, and the two torque motors are respectively Installed on the height axis and azimuth axis of the ground-level rack, the tracking servo control system controls the telescope to track space debris by driving the torque motor.

The diffuse reflection laser ranging system includes a laser emitting optical path, an echo receiving and echo detecting optical path, and a laser ranging control circuit and software;

The laser emitting optical path includes a laser, a negative lens and a positive lens. The laser light emitted by the laser passes through the negative lens and the positive lens and then is emitted to space debris through the telescope;

The echo receiving and detection optical path includes a rotating mirror, a pair of collimating lenses, a small aperture diaphragm, a mechanical shutter, a narrow-band filter and a detector; the rotating mirror is located between the receiving optical path and the laser for the conversion of the transmitting and receiving optical paths: when When the laser is emitted, the laser optical path is connected, and the optical path of the telescope is in the transmitting state; when the echo is received, the receiving optical path is connected, and the telescope is in the receiving state; the two collimating lenses are confocal, and they transform the echo beam into a diameter that matches the receiving aperture of the detector The afocal beam; the pinhole diaphragm is located at the focus of the collimator lens to filter out noise photons that are in a different direction from the echo light; the mechanical shutter is located 10mm in front of the focus of the collimator lens to control the on and off time of the optical path and filter out Noise photons within a certain period of time; the narrow-band filter is located behind the collimator lens to filter out noise photons with different wavelengths from the echo light; the detector is located at the end of the optical path to receive echo photons to generate echo signals;

The laser ranging control circuit and software control the processes of laser emission, echo reception and data processing.

The adaptive optics system includes a fine tracking system, a narrowing optical path, a deformable mirror, a Hartmann sensor and a wavefront processor;

The fine tracking system has two stages. The first-stage fine-tracking system is located behind the second spectroscope to detect and correct the tracking error of the telescope; the second-stage fine-tracking system uses the Hartmann sensor to detect the overall tilt error of the wavefront caused by atmospheric turbulence. The second tilting mirror performs real-time compensation according to the measured wavefront tilt;

The beam reduction optical path is located behind the reflected optical path of the second beam splitter, and is composed of a pair of off-axis parabolic mirrors, which reduce the beam from the telescope to a size matching the deformable mirror;

The deformable mirror is located behind the narrowing optical path, followed by the third beam splitter and imaging CCD, and the Hartmann sensor at the end of the optical path; the Hartmann sensor simultaneously detects the wavefront error and the second-level fine tracking error of the beam ; The wavefront processor, as an electronic device not an optical device, is responsible for processing the data transmitted by the Hartmann sensor, and the obtained overall average slope data of the wavefront is used to control the second-stage tilting mirror for the second-stage fine tracking control , the wavefront error data is used to control the work of the deformable mirror to compensate for the wavefront distortion, and finally the second imaging mirror and imaging CCD give a high-resolution image.

A photoelectric telescope system that can be used for diffuse reflection laser ranging and high-resolution imaging at the same time, including a telescope system, a diffuse reflection laser ranging system and an adaptive optics system. The photoelectric telescope system emits laser light to the target, and the light reflected from the target passes through the telescope system composed of the primary mirror, secondary mirror and folding axis mirror, and then enters the Kud room, where the light beam is divided into two paths, one of which is The echo light returned by the laser reflected by the target enters the echo receiving system, and the laser ranging echo signal is generated after multiple filters; the sunlight reflected by the target enters the adaptive optics system, and the atmospheric turbulence is corrected by the tilting mirror and the deforming mirror. After the wavefront is distorted, a high-resolution target image close to the light diffraction limit is obtained through the imaging system.

Principle of the present invention:

1. The principle of diffuse reflection laser ranging:

The principle of diffuse reflection laser ranging is to emit a pulsed laser to a diffuse reflection target, and record the laser emission time, then use the telescope to receive the echo photons reflected by the target, and record the time when the echo photons are received, and calculate the laser emission time The distance from the target to the ground observation station can be obtained from the time difference with the echo receiving time.

Diffuse reflection laser ranging adopts the method of transmitting and receiving common optical path, in which the rotating mirror is the key device for converting the optical path of receiving and receiving. speed rotation. When the laser is emitted, the laser beam passes through the opening of the rotating mirror without obstacles, is expanded by the negative lens and the positive lens, and then passes through the first beam splitter and is emitted to the target through the telescope. The echo is reflected by the primary mirror, secondary mirror, and folding axis mirror, then reaches the Kud room, and then reaches the rotating mirror through the first beam splitter, positive lens, and negative lens. At this time, the reflecting surface of the rotating mirror has been transferred into the optical path. , the echo beam is reflected to the collimating lens group, then passes through the narrow-band filter and is received by the detector to generate an echo signal. The collimating lens group transforms the echo beam into an afocal beam whose diameter matches the receiving aperture of the detector; the narrow-band filter filters out noise photons with different wavelengths from the echo photons. In addition, a pinhole diaphragm and a mechanical shutter are set at the focal point of the collimator lens. Noise photons with different wave arrival times. the

2. Working principle of adaptive optics system:

The sky target beam is reflected by the primary mirror and the secondary mirror and becomes an afocal beam, and then reflected by the multi-faceted folding mirror and the first tilting mirror into the Kuder room. The adaptive optics imaging system is on the platform in the Kuder room. In order to improve the tracking accuracy of the target, a two-stage fine tracking system is set up to compensate the tracking error of the ground-level rack and the overall tilt error of the wavefront caused by atmospheric turbulence. The tilting mirror of the first-stage fine tracking system is a 45° reflector at the head of the pitch axis, and splits light at the second beam splitter at the front end of the adaptive optical path of the Kud room, and part of the light enters the fine tracking sensor through the second beam splitter, Tracking error detection is performed by an image-intensifying charge-coupled device ICCD detector. The calculation of tracking error (star spot center of gravity displacement) and control algorithm calculation is completed by high-speed digital signal processor, and its output is amplified by high-voltage amplifier to control the first tilting mirror to correct tracking error. The second level of fine tracking is set in front of the deformable mirror, and the overall average slope data of the wavefront obtained by the rear Hartmann sensor controls the second tilting mirror to perform the second level of fine tracking control, further correcting the wavefront tilt and reducing star image shake. The adaptive optics system consists of a reduced-beam optical path, a deformable mirror, a Hartmann sensor and a wavefront processor. The attenuator transforms the beam aperture to match the size of the deformable mirror. The role of the Hartmann sensor is to detect the wavefront error and the second-level fine tracking error of the adaptive optics system. detector. The optical signal detected by Hartmann goes through the calculation of the center of the Hartmann spot, the calculation and control of the wavefront restoration, and the obtained overall average slope data of the wavefront is used to control the work of the second-stage tilting mirror; the wavefront obtained by the Hartmann sensor The front error data is used to control the deformable mirror to compensate for wavefront distortion caused by atmospheric turbulence. The wavefront-corrected image is focused by the second imaging mirror and detected by the imaging CCD to obtain a high-resolution target image.

Compared with the prior art, the present invention has the beneficial effects of:

(1) The laser ranging accuracy of the diffuse reflection target of this system is better than the optical observation accuracy;

(2) The resolution of the image formed by the adaptive optics of this system on the target is close to the optical diffraction limit of the telescope aperture, which is much higher than the imaging resolution of the same aperture (greater than 100mm) non-adaptive optics telescope;

(3) Capable of simultaneous laser ranging and high-resolution imaging of space targets with corner reflectors;

(4) It can perform diffuse reflection laser ranging and high-resolution imaging on space debris at the same time.

the

Description of drawings

Fig. 1 is a schematic diagram of the principle and structural diagram of an imaging system and a diffuse reflection laser ranging system in the present invention;

Fig. 2 is the schematic diagram of imaging system and diffuse reflection laser ranging optical system in the present invention;

Among Fig. 2: 1-primary mirror, 2-secondary mirror, 3-the first refracting mirror, 4-the first tilting mirror, 5-the second refracting mirror, 6-the third refracting mirror, 7- The fourth refracting mirror, 8-the first beam splitter, 9-positive lens, 10-negative lens, 11-turning mirror, 12-laser, 13-the first collimating lens, 14-aperture diaphragm, 15- Mechanical shutter, 16-second collimator lens, 17-narrow band filter, 18-detector, 19-second beam splitter, 20-first imaging mirror, 21-ICCD detector, 22-first off-axis paraboloid Mirror, 23-field mirror, 24-second off-axis parabolic mirror, 25-second tilting mirror, 26-deformable mirror, 27-third beam splitter, 28-second imaging mirror, 29-imaging CCD, 30-all Anti-mirror, 31-Hartmann sensor;

Fig. 3 is the structural representation of telescope system in the present invention;

32-lens barrel, 33-height axis torque motor, 34-azimuth axis torque motor, 35-level frame, 36-tracking servo control system.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a photoelectric telescope system for simultaneous measurement of diffuse reflection laser ranging and high-resolution imaging, including laser emission, echo reception and adaptive optics imaging, is as follows:

Laser emission: The laser ranging control circuit and software send out a laser emission signal, and the laser in the Kud room enters the telescope through the laser emission path, and then emits to the space target through the telescope;

Echo reception: The echo beam from the space target is received by the telescope, and then enters the echo reception and echo detection optical path of the Kud room, and the echo signal is generated and sent to the laser ranging control circuit and software, and diffuse reflection is obtained after processing The distance value of laser ranging;

Adaptive optics imaging: The space target light is received by the telescope, enters the adaptive optics system in the Kudd room, and is narrowed by the narrowing optical path, and then the overall tilt and wavefront error are detected by the Hartmann sensor and wavefront processor , and after processing, the overall tilt of the wavefront and wavefront error data are given, which are used to control the fine tracking system to correct the wavefront tilt and control the deformable mirror to correct the wavefront error, thereby obtaining a high-resolution image.

As shown in Figures 2 and 3, a photoelectric telescope for simultaneous measurement of diffuse reflection laser ranging and high-resolution imaging includes a telescope system, a diffuse reflection laser ranging system and an adaptive optics system; the telescope system includes a main Mirror 1, secondary mirror 2, folding axis optical path, lens barrel 32, ground-level frame 35, torque motors—height axis torque motor 33 and azimuth axis torque motor 34, tracking servo control system 36, primary mirror 1 and secondary mirror 2 Installed in the lens barrel 32, the lens barrel 32 and the folding axis optical path are installed on the ground-level frame 35, and the two torque motors are respectively installed on the height axis and the azimuth axis of the ground-level frame, and the tracking servo control system 36 drives the torque motor Control the telescope to track space debris.

The refraction optical path includes a first refraction mirror 3, a first tilt 4, a second refraction mirror 5, a third refraction mirror 6 and a fourth refraction mirror 7, and the light beam from the space object passes through After the main mirror 1 and the secondary mirror 2 receive it, it becomes an afocal light beam, which is reflected by the first refraction mirror 3 and reaches the first tilting mirror 4. The first tilting mirror 4 corrects the tracking error of the telescope and reflects it to the second refraction mirror 5. Then it is reflected by the third refracting mirror 6 and the fourth refracting mirror 7 to reach the first beam splitter 8 in the Kud room. The first beam splitter 8 is an optical lens shared by the diffuse reflection laser ranging system and the adaptive optics system. The first beam splitter 8 enters the telescope to emit to the space target, and the laser ranging echo beam passes through the first beam splitter 8 and enters the echo receiving optical path.

The first refracting mirror 3, the first tilting mirror 4, the second refracting mirror 5, the third refracting mirror 6, and the fourth refracting mirror 7 are successively located at the refraction points of the ground-level frame, and are used when receiving To guide the beam into the Kud room, when the laser is launched, it is used to guide the laser beam into the primary and secondary mirrors to emit to the space target.

The diffuse reflection laser ranging system includes a laser emitting optical path, an echo receiving and echo detecting optical path, and a laser ranging control circuit and software;

The laser emitting optical path includes a laser 12, a negative lens 10 and a positive lens 9, and the laser light emitted by the laser 12 passes through the negative lens 10 and the positive lens 9 and then emits to space debris through the telescope;

The echo receiving and detection optical path includes a rotating mirror 11, a pair of collimating lenses 13 and 16, a small aperture diaphragm 14, a mechanical shutter 15, a narrow-band filter 17 and a detector 18; the rotating mirror 11 is located between the receiving optical path and the laser 12 It is used for transmitting and receiving optical path conversion: when the laser is emitted, the laser optical path is connected, and the optical path of the telescope is in the transmitting state; when the echo is received, the receiving optical path is connected, and the telescope is in the receiving state; The echo beam is converted into an afocal beam whose diameter matches the receiving aperture of the detector 18; the pinhole diaphragm 14 is located at the focus of the collimator lens to filter out noise photons in directions different from the echo light; the mechanical shutter 15 is located at the focus of the collimator lens The first 10mm is used to control the on and off time of the optical path, and to filter out noise photons within a certain period of time; the narrow-band filter 17 is located behind the collimator lens 16, and is used to filter out noise photons with different wavelengths from the echo light; The device 18 is located at the end of the optical path, and receives echo photons to generate echo signals;

The laser ranging control circuit and software are non-optical devices not in the optical path, and their functions are to control laser emission, echo reception and data processing.

The rotating mirror 11 is coated with a high-reflection film and has a light hole, which is located at a distance of 80 mm from the center of the rotating mirror. The adaptive optics system includes a fine tracking system, a narrowing optical path, a deformable mirror, a Hartmann sensor 31 and a wavefront processor;

The fine tracking system has two stages, the first stage fine tracking system is located behind the second beam splitter 19, detects and corrects the tracking error of the telescope;

The first tilting mirror 4 of the first-stage fine tracking system is a 45° reflector at the head of the pitch axis, and splits light at the second beam splitter 19 at the front end of the adaptive optical path of the Coud chamber, and a part of the light passes through the second beam splitter 19 Entering the fine tracking sensor, the tracking error detection is performed by the image intensifying charge-coupled device ICCD detector 21 .

The first imaging mirror 20 and the ICCD 21 are sequentially located behind the projected light path of the second beam splitter 19, and are mainly used to monitor the tracking error of the telescope.

In the second stage of fine tracking, the Hartmann sensor 31 detects the overall tilt error of the wavefront caused by atmospheric turbulence, and the second tilting mirror 25 performs real-time compensation according to the measured wavefront tilt;

The beam reduction optical path is located behind the reflection optical path of the second beam splitter 19, and is composed of a pair of off-axis parabolic mirrors 22 and 24 and a field mirror 23 at the focal point, which reduces the beam from the telescope to a size that matches the deformable mirror 26;

The third beam splitter 27 is located behind the deformable mirror 26 and before the second imaging mirror 28;

The second imaging mirror 28 and the imaging CCD29 are located after the projection light path of the 27th beam splitter in turn;

The total reflection mirror 30 is located behind the third beam splitter 27 reflection light path;

The deformable mirror 26 is located behind the narrowing optical path, followed by the third beam splitter 27, the second imaging mirror 28 and the imaging CCD29, and the end of the optical path is a Hartmann sensor 31; error and second-level fine tracking error detection, the wavefront processor, as an electronic device other than an optical device, is responsible for processing the data transmitted by the Hartmann sensor 31, and the obtained overall average slope data of the wavefront is used to control the first The secondary tilting mirror 25 performs the second-stage fine tracking control, and the wavefront error data is used to control the work of the deformable mirror 26 to compensate the wavefront distortion. The wavefront-corrected image is focused by the second imaging mirror 28, and finally imaged by the second Mirror 28 and imaging CCD 29 provide high-resolution images.

The second tilting mirror 25, the deformable mirror 26, the third beam splitter 27, the second imaging mirror 28, the imaging CCD29, the mutual distance and the position between the total reflection mirror 30 and the Hartmann sensor 31 have no specific requirements, as space permits Under the conditions, as long as the optical path can be separated, it is fine.

The invention can be used for the photoelectric telescope system of diffuse reflection laser ranging and high-resolution imaging at the same time, including a telescope system, a diffuse reflection laser ranging system and an adaptive optics system. The photoelectric telescope system emits laser light to the target, and the light reflected from the target passes through the telescope system composed of the primary mirror, secondary mirror and folding axis mirror, and then enters the Kud room, where the light beam is divided into two paths, one of which is The echo light returned by the laser reflected by the target enters the echo receiving system, and the laser ranging echo signal is generated after multiple filters; the sunlight reflected by the target enters the adaptive optics system, and the atmospheric turbulence is corrected by the tilting mirror and the deforming mirror. After the wavefront is distorted, a high-resolution target image close to the light diffraction limit is obtained through the imaging system.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents .

Claims (5)

1. a photo-electric telescope system for diffuse reflection laser ranging and high resolution imaging synchro measure, is characterized in that comprising Laser emission, echo reception and adaptive optical imaging, specific as follows:

Laser emission: laser ranging control circuit and software send laser firing signals, the laser in Kuder room enters telescope by Laser emission light path, is then launched to space junk by telescope;

Echo reception: the echo beam from space junk is received by telescope, enter echo reception and the sounding light path of Kuder room again, produce echoed signal and send laser ranging control circuit and software to, obtain the distance value of diffuse reflection laser ranging after treatment;

Adaptive optical imaging: space junk light is received by telescope, enter the ADAPTIVE OPTICS SYSTEMS in Kuder room, by contracting beam optical path contracting bundle, wavefront overall tilt and wavefront error is detected again by Hartmann sensor and Wavefront processor, and provide wavefront overall tilt amount and wavefront error data after process, be used for controlling smart tracker correction wavetilt and controlling distortion mirror correction wavefront error, thus obtain high-definition picture.

2. the photo-electric telescope of diffuse reflection laser ranging according to claim 1 and high resolution imaging synchro measure, is characterized in that comprising telescopic system, diffuse reflection laser distance measuring system and ADAPTIVE OPTICS SYSTEMS; Described telescopic system comprises primary mirror, secondary mirror, folding axial light path, lens barrel, altitude azimuth form frame, torque motor and tracking servo control system, primary mirror and secondary mirror are arranged in lens barrel, lens barrel and folding axial light path are arranged in altitude azimuth form frame, two torque motors are arranged on altitude azimuth form bracket height axle and azimuth axis respectively, and tracking servo control system follows the tracks of space junk by driving moment Electric Machine Control telescope.

3. the photo-electric telescope of diffuse reflection laser ranging according to claim 2 and high resolution imaging synchro measure, is characterized in that described diffuse reflection laser distance measuring system comprises Laser emission light path, echo reception and sounding light path and laser ranging control circuit and software;

Laser emission light path comprises laser instrument, negative lens and positive lens, and the laser that laser instrument sends is launched to space junk by telescope after negative lens and positive lens;

Echo reception comprises tilting mirror, pair of alignment lens, aperture, mechanical shutter, narrow band pass filter and detector with detection light path; Tilting mirror is between receiving light path and laser instrument, and for transmitting and receiving light path converting: the connection laser optical path when Laser emission, telescope light path is in emission state; Connect receiving light path during echo reception, telescope is in accepting state; Two sides collimation lens is confocal, they echo beam is transformed into diameter and detector Receiver aperture match without defocused laser beam; Aperture is positioned at collimation lens focus place, the noise photon that filtering is different from echo light direction; Mechanical shutter is 10mm place before collimation lens focus, for controlling optical circuit and shut-in time, and the noise photon in filtering certain hour section; Narrow band pass filter is positioned at after collimation lens, for the noise photon that filtering is different from echo optical wavelength; Detector is positioned at optical line terminal, receives echo photon and produces echoed signal;

Laser ranging control circuit and software control Laser emission, echo reception and data handling procedure.

4. the photo-electric telescope of diffuse reflection laser ranging according to claim 3 and high resolution imaging synchro measure, is characterized in that described tilting mirror is coated with high-reflecting film, and has light hole, and light hole is positioned at distance 80mm place, tilting mirror center.

5. the diffuse reflection laser ranging according to Claims 2 or 3 or 4 and the photo-electric telescope of high resolution imaging synchro measure, is characterized in that described ADAPTIVE OPTICS SYSTEMS comprises smart tracker, contracting beam optical path, distorting lens, Hartmann sensor and wave front processor;

Essence tracker has two-stage, and first order essence tracker is positioned at after the second spectroscope, detects and revises telescope tracking error; Second level essence follows the tracks of the wavefront overall tilt error then caused by Hartmann sensor atmospheric sounding turbulent flow, and the second tilting mirror carries out real-Time Compensation according to the wavetilt amount measured;

Contracting beam optical path is positioned at after second spectroscopical reflected light path, is made up of, will narrows down to the size matched with distorting lens from telescopical light beam a pair confocal off axis paraboloidal mirror and the field lens that is positioned at focus;

After distorting lens is positioned at contracting beam optical path, be then the 3rd spectroscope and imaging CCD successively below, optical line terminal is Hartmann sensor; Hartmann sensor is the detection simultaneously carrying out carrying out light beam wavefront error and second level essence tracking error; Wave front processor is as the electronic equipment of non-optical device, be responsible for processing the data that Hartmann sensor sends, the wavefront ensemble average slope data obtained is used for controlling second level tilting mirror and carries out second level essence tracing control, wavefront error data are then used for the work of controlling distortion mirror, compensated wave front-distortion, finally provides high resolution image by the second imaging lens and imaging CCD.