CN104267406B - A kind of diffuse-reflectance laser ranging and the photo-electric telescope system of high resolution imaging synchro measure - Google Patents
A kind of diffuse-reflectance laser ranging and the photo-electric telescope system of high resolution imaging synchro measure Download PDFInfo
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- CN104267406B CN104267406B CN201410444807.4A CN201410444807A CN104267406B CN 104267406 B CN104267406 B CN 104267406B CN 201410444807 A CN201410444807 A CN 201410444807A CN 104267406 B CN104267406 B CN 104267406B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/0068—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration having means for controlling the degree of correction, e.g. using phase modulators, movable elements
Abstract
The present invention relates to a kind of photo-electric telescope system that can be used for space junk diffuse-reflectance laser ranging and high resolution imaging, belong to photo-electric telescope technical field.Including Laser emission, echo reception and adaptive optical imaging.Laser emission: the laser that laser instrument sends enters telescope by Laser emission light path and launches to extraterrestrial target；Echo reception: echo beam is received by telescope, enters back into echo reception and sounding light path, produces the distance value obtaining laser ranging after echo-signal sends laser ranging control circuit and software processes to；Adaptive optical imaging: extraterrestrial target light is received by telescope, enter ADAPTIVE OPTICS SYSTEMS, by contracting beam optical path contracting bundle, again by Hartmann sensor and Wavefront processor detection wavefront overall tilt and wavefront error, obtain wavefront overall tilt amount and wavefront error data, it is used for controlling essence tracking system correction inclination of wave front and controlling distorting lens correction wavefront error, thus obtains high-definition picture.
Description
Technical field
The invention belongs to photo-electric telescope technical field, relate to a kind of photo-electric telescope system and photo-electric telescope, especially
It is to be simultaneously used for space junk diffuse-reflectance laser ranging and high resolution imaging synchro measure.
Background technology
Satellite laser ranging (SLR) (Satellite Laser Ranging, SLR) is that early 1960s is by U.S.'s aerospace
Office (NASA) initiate one is intended to utilize space technology research geodynamics, geodesy, geophysics and astronomy
The technological means of etc..It is the turnaround time utilizing Laser Measurement pulse between observation station and satellite, thus calculates
Go out the satellite distance to survey station, be a kind of technological means that in current extraterrestrial target range measurement, precision is the highest.Owing to laser is
Monochromaticity, and there is good directivity, so laser ranging can provide the orientation of target, height and distance to believe simultaneously
Breath.Conventional laser range finding refers to cooperative target equipped with the extraterrestrial target of corner reflector, such as Ajisai, Lageos-1 satellite
Deng, carry out satellite laser ranging (SLR), at present the range accuracy of Lageos satellite can be reached grade.
Space junk belongs to noncooperative target, is fitted without corner reflector, only with diffuse-reflectance laser ranging technique pair
Space junk detects.Due to the importance of space junk He the precise orbit determination of some non-cooperation satellite, broken to space abroad
The research of sheet and the range finding of non-collaborative space target laser is attached great importance to, but only has a small amount of report, and majority is in confidential state.Beautiful
The military of state once carried out this respect research on the Starfire bore 3.5 m telescope of New Mexico.The electronics of Australia
Photonics Systems Inc. (EOS) have developed for conventional active space junk laser observations system, and this system can be accurate
The ground observation 1000km orbit altitude space junk less than 10cm, certainty of measurement is better than 1 m, and BURN-THROUGH RANGE is 3200
Km, orbit determination accuracy 5 m, orbit prediction precision 200m (24 h).Domestic, Shanghai Observatory and China Electronic Science and Technology Corporation
11st institute cooperation, establishes big energy high-power Nd:YAG range finding pilot system, starts in Type At The Sheshan Station, Shanghai City observation station
The laser of noncooperative target satellite and space junk is followed the tracks of and range finding test, obtains the unrestrained of 3 rocket remains in July, 2008
Reflection laser ranging data, range accuracy 70cm ~ 80cm.2010 Shanghai Observatorys are diffuse-reflectance Laser Measuring after system upgrade is transformed
Away from precision 50cm ~ 80cm, maximum ranging distance can reach 1200km.Additionally, Yunnan Observatory started to actively develop sky from January, 2008
Between fragment diffuse-reflectance laser ranging research, have devised and embodied Yunnan Observatory 1.2 m telescope 10Hz altogether light path diffuse-reflectance and swash
Ligh-ranging control system, the control including laser instrument, signal sensor and horological device etc., and receive fire on June 7th, 2010
The echo of arrow remains, has obtained number multi-turn space junk echo, and range error scope is 50 ~ 250cm.
Adaptive optics (Adaptive Optics, AO) technology is to compensate atmospheric turbulance at present most to have telescope impact
The measure of effect.ADAPTIVE OPTICS SYSTEMS utilizes wave front detector real-time detection Beam Wave-Front error, then by these measurement data
Carry out processing and being converted to the control signal of ADAPTIVE OPTICS SYSTEMS, control distorting lens and work, real time correction Beam Wave-Front error,
Thus compensate the wavefront distortion caused by atmospheric turbulance, make telescope obtain the target picture close to diffraction limit.Adaptive optics
Telescope has been obtained for application in target high resolution imaging.In the SPIE published for 2004, page 943 describes Yunnan
Observatory's 1.2m self-adaptive optical telescope can be used for target high resolution imaging, but this self-adaptive optical telescope is only used for
High resolution imaging, it is impossible to for diffuse-reflectance (being satellite originally) laser ranging.
The task of Space Object Detection system is that important extraterrestrial target is carried out accurately detecting and tracking, and determining may be to boat
The important goal characteristics such as the task of the target that it system constitutes a threat to, size, shape and orbit parameter；Target characteristic data is entered
Row is sorted out and distribution.Space Object Detection has important military value, is possible not only to assist in the space energy of potential enemy
Power, it is also possible to the track of prediction extraterrestrial target, to contingent collision and the attack alarm etc. to one's own side's space system.Target
The analysis of characteristic is the precondition of target acquisition, identification, and the deepest to target understanding, the information obtaining target is the most, more energy
Improve its detection, the ability of identification.
Summary of the invention
Present invention solves the technical problem that it is to overcome the deficiencies in the prior art, integrated innovation prior art, it is provided that Yi Zhongke
It is simultaneously used for the photo-electric telescope system of diffuse-reflectance laser ranging and high resolution imaging.
The technical solution used in the present invention is as follows:
A kind of diffuse-reflectance laser ranging and the photo-electric telescope system of high resolution imaging synchro measure, send out including laser
Penetrate, echo reception and adaptive optical imaging, specific as follows:
Laser emission: laser ranging control circuit and software send laser firing signals, and the laser in Kuder room passes through
Laser emission light path enters telescope, is then launched to extraterrestrial target by telescope；
Echo reception: the echo beam from extraterrestrial target is received by telescope, enter back into the echo reception of Kuder room with
Sounding light path, produces echo-signal and sends laser ranging control circuit and software to, obtains diffuse-reflectance after treatment and swashs
The distance value of ligh-ranging；
Adaptive optical imaging: extraterrestrial target light is received by telescope, enters the ADAPTIVE OPTICS SYSTEMS in Kuder room,
By contracting beam optical path contracting bundle, then by Hartmann sensor and Wavefront processor detection wavefront overall tilt and wavefront error, and process
After provide wavefront overall tilt amount and wavefront error data, be used for controlling essence tracking system correction inclination of wave front and controlling distorting lens
Revise wavefront error, thus obtain high-definition picture.
The present invention also provides for the photo-electric telescope of a kind of diffuse-reflectance laser ranging and high resolution imaging synchro measure, including
Telescopic system, diffuse-reflectance LDMS and ADAPTIVE OPTICS SYSTEMS；Described telescopic system include primary mirror, secondary mirror,
Rolling over axial light path, lens barrel, altitude azimuth form frame, torque motor, tracking servo control system, primary mirror and secondary mirror are arranged in lens barrel, mirror
Cylinder and folding axial light path are arranged in altitude azimuth form frame, and two torque motors are separately mounted to altitude azimuth form bracket height axle and azimuth axis
On, tracking servo control system controls telescope by driving moment motor and follows the tracks of space junk.
Described diffuse-reflectance LDMS includes Laser emission light path, echo reception and sounding light path and swashs
Ligh-ranging control circuit and software；
Laser emission light path includes laser instrument, minus lens and plus lens, and the laser that laser instrument sends is through minus lens and just
Launched to space junk by telescope after lens；
Echo reception includes tilting mirror, pair of alignment lens, aperture, mechanical shutter, narrow band pass filter with detection light path
And detector；Tilting mirror is changed for transmitting and receiving light path between receiving light path and laser instrument: connect when Laser emission
Laser optical path, telescope light path is in emission state；Connecting receiving light path during echo reception, telescope is in reception state；Two
Face collimating lens is confocal, they echo beam is transformed into that diameter and detector Receiver aperture match without defocused laser beam；Aperture
Diaphragm is positioned at collimating lens focal point, filters the noise photon different from echo light direction；Mechanical shutter is in collimating lens focus
At front 10mm, it is used for controlling optical circuit and shut-in time, filters the noise photon in certain period of time；Narrow band pass filter is positioned at
After collimating lens, for filtering the noise photon different from echo optical wavelength；Detector is positioned at optical line terminal, is received back to the glistening light of waves
Son produces echo-signal；
Laser ranging control circuit controls the processes such as Laser emission, echo reception and data process with software.
Described ADAPTIVE OPTICS SYSTEMS includes essence tracking system, contracting beam optical path, distorting lens, Hartmann sensor and wavefront
Datatron；
Essence tracking system has two-stage, and first order essence is followed the tracks of system and is positioned at after the second spectroscope, detects and revises telescope
Tracking error；The wavefront overall tilt error that second level essence tracking is then caused by Hartmann sensor atmospheric sounding turbulent flow, second
Tilting mirror carries out real-Time Compensation according to the inclination of wave front amount measured；
Contracting beam optical path is positioned at after second spectroscopical reflected light path, is made up of a pair off axis paraboloidal mirror, will be from prestige
The light beam of remote mirror narrows down to the size matched with distorting lens；
After distorting lens is positioned at contracting beam optical path, being then the 3rd spectroscope and imaging CCD successively below, optical line terminal is to breathe out
Special graceful sensor；Hartmann sensor is to carry out light beam carries out wavefront error and the detection of second level essence tracking error simultaneously；
Wave front processor, as the electronic equipment of non-optical device, is responsible for that Hartmann sensor is transmitted the data come and is processed, institute
The wavefront ensemble average slope data obtained carries out second level essence tracing control, wavefront error number for controlling second level tilting mirror
According to being then used for controlling distorting lens work, compensation wavefront distortion, finally provided high-resolution by the second imaging lens with imaging CCD and try hard to
Picture.
The photo-electric telescope system of diffuse-reflectance laser ranging and high resolution imaging can be simultaneously used for, including telescope system
System, diffuse-reflectance LDMS and ADAPTIVE OPTICS SYSTEMS.Photo-electric telescope system transmitting laser is to target, from target reflection
The light come, after the telescopic system that primary mirror, secondary mirror and folding axle reflecting mirror form, enters Kuder room, is divided at Kuder room light beam
Two-way, wherein a road is that the echo light that target reflection laser is returned enters echo reception system, produces and swash after multiple optical filtering
Ligh-ranging echo-signal；The sunlight part of target reflection then enters ADAPTIVE OPTICS SYSTEMS, through tilting mirror, distorting lens correction
After the wavefront distortion that atmospheric turbulance produces, imaged system obtains the high resolution target image close to optical diffraction limit.
The principle of the present invention:
1, diffuse-reflectance laser distance measuring principle:
The principle of diffuse-reflectance laser ranging is to diffuse-reflectance objective emission pulse laser, and records the Laser emission moment,
Receive, with telescope, the echo photon that target reflection is returned again, and record the moment receiving echo photon, by calculating laser
X time can be obtained by the target distance to surface-based observing station with the time difference in echo reception moment.
Diffuse-reflectance laser ranging uses transmitting-receiving light path mode altogether, and wherein tilting mirror is the key device of transmitting-receiving light path converting, turns
Mirror has light hole, and remainder is coated with high-reflecting film, and during diffuse-reflectance laser ranging, tilting mirror rotates with certain speed.Laser is sent out
When penetrating, the accessible perforate through tilting mirror of laser beam, expanded through minus lens, plus lens, then through the first spectroscope by hoping
Remote mirror is to objective emission.Echo then arrives Kuder room after primary mirror, secondary mirror, the reflection of folding axle reflecting mirror, then through the first light splitting
Mirror, plus lens, minus lens arrive tilting mirror, and now the reflecting surface of tilting mirror has proceeded in light path, and echo beam is reflected to collimation
Battery of lens, then it is received by a detector generation echo-signal through after narrow band pass filter.Wherein echo beam is become by collimation lens set
Change that diameter and detector Receiver aperture match into without defocused laser beam；Narrow band pass filter filters make an uproar different from echo photon wavelength
Acousto-optic.Additionally arranging aperture and mechanical shutter at collimating lens focal point, the effect of aperture is to filter and return
The noise photon that ripple direction is different, mechanical shutter then controls optical circuit and shut-in time, filters different for the time of advent from echo
Noise photon.
2, ADAPTIVE OPTICS SYSTEMS operation principle:
Sky target beam becomes without defocused laser beam after primary mirror, secondary mirror reflection, then inclines through multiaspect folding axle reflecting mirror and first
Tiltedly mirror is reflected into Kuder room, on adaptive optical imaging system platform in Kuder room.In order to improve the tracking to target
Precision, is provided with two-stage essence and follows the tracks of system, overall with the wavefront that the tracking error and atmospheric turbulance compensating altitude azimuth form frame causes
Heeling error.It is 45 ° of reflecting mirrors at pitching spindle nose that first order essence follows the tracks of the tilting mirror of system, and at Kuder room adaptive inertia weight
Carrying out light splitting at the second spectroscope of front end, a part of light transmission the second spectroscope enters essence tracking transducer, by image intensifying electric charge
Coupled apparatus ICCD detector is tracked error detection.Tracking error (star image hot spot displacement of center of gravity) calculates and control algolithm
Calculating and completed by high speed digital signal processor, its output controls the first tilting mirror after high-voltage amplifier amplifies and is tracked
Error correction.Second level essence is followed the tracks of before being then arranged on distorting lens, and the wavefront ensemble average that Hartmann sensor below obtains is oblique
Rate Data Control the second tilting mirror carries out second level essence tracing control, corrects inclination of wave front further, reduces star image shake.Adaptive
Optical system is answered to be made up of contracting beam optical path, distorting lens, Hartmann sensor and wave front processor.Beam size is converted by contracting Shu Guang
Become the size matched with distorting lens.Hartmann sensor effect is by wavefront error and the second level of ADAPTIVE OPTICS SYSTEMS
The detection of essence tracking error, is made up of multiple hexagonal sub-aperture, uses high-quantum efficiency, low noise, high frame frequency electric charge coupling
Clutch part is as detector.The optical signal that Hartmann detects calculates through Hartmann's hot spot center calculation, wave front restoration and controls
Etc. process, the wavefront ensemble average slope data obtained is for controlling second level tilting mirror work；Hartmann sensor obtains
Wavefront error data then are used for controlling distorting lens, compensate the wavefront distortion produced because of atmospheric turbulance.Image after wavefront correction by
Second imaging lens focuses on, imaging CCD detection, obtains the target image of high resolution.
Compared with prior art, it has the beneficial effect that the present invention
(1) native system diffuse-reflectance target laser range accuracy is better than optical observation precision；
(2) native system adaptive optics to target imaging resolution close to the optical diffraction limit of telescope bore,
Imaging resolution far above same bore (more than 100mm) non-self-adapting optical telescope；
(3) extraterrestrial target with corner reflector can be carried out laser ranging and high-resolution imaging simultaneously；
(4) space junk can be carried out diffuse-reflectance laser ranging and high-resolution imaging simultaneously.
Accompanying drawing explanation
Fig. 1 is that in the present invention, imaging system and diffuse-reflectance LDMS principle are intended to structural diagrams；
Fig. 2 is imaging system and diffuse-reflectance laser ranging optical system schematic diagram in the present invention；
In Fig. 2: 1-primary mirror, 2-secondary mirror, 3-the first folding axle reflecting mirror, 4-the first tilting mirror, 5-the second folding axle reflecting mirror, 6-
3rd folding axle reflecting mirror, 7-four fold axle reflecting mirror, 8-the first spectroscope, 9-plus lens, 10-minus lens, 11-tilting mirror, 12-swashs
Light device, 13-the first collimating lens, 14-aperture, 15-mechanical shutter, 16-the second collimating lens, 17-narrow band pass filter,
18-detector, 19-the second spectroscope, 20-the first imaging lens, 21-ICCD detector, 22-the first off axis paraboloidal mirror, 23-field
Mirror, 24-the second off axis paraboloidal mirror, 25-the second tilting mirror, 26-distorting lens, 27-the 3rd spectroscope, 28-the second imaging lens,
29-imaging CCD, 30-total reflective mirror, 31-Hartmann sensor；
Fig. 3 is the structural representation of telescopic system in the present invention；
32-lens barrel, 33-altitude axis torque motor, 34-azimuth axis torque motor, 35-altitude azimuth form frame, 36-tracking servo
Control system.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of diffuse-reflectance laser ranging and the photo-electric telescope system of high resolution imaging synchro measure, wrap
Include Laser emission, echo reception and adaptive optical imaging, specific as follows:
Laser emission: laser ranging control circuit and software send laser firing signals, and the laser in Kuder room passes through
Laser emission light path enters telescope, is then launched to extraterrestrial target by telescope；
Echo reception: the echo beam from extraterrestrial target is received by telescope, enter back into the echo reception of Kuder room with
Sounding light path, produces echo-signal and sends laser ranging control circuit and software to, obtains diffuse-reflectance after treatment and swashs
The distance value of ligh-ranging；
Adaptive optical imaging: extraterrestrial target light is received by telescope, enters the ADAPTIVE OPTICS SYSTEMS in Kuder room,
By contracting beam optical path contracting bundle, then by Hartmann sensor and Wavefront processor detection wavefront overall tilt and wavefront error, and process
After provide wavefront overall tilt amount and wavefront error data, be used for controlling essence tracking system correction inclination of wave front and controlling distorting lens
Revise wavefront error, thus obtain high-definition picture.
As shown in Figures 2 and 3, a kind of diffuse-reflectance laser ranging and the photo-electric telescope of high resolution imaging synchro measure,
Including telescopic system, diffuse-reflectance LDMS and ADAPTIVE OPTICS SYSTEMS；Described telescopic system include primary mirror 1,
Secondary mirror 2, folding axial light path, lens barrel 32, altitude azimuth form frame 35, torque motor altitude axis torque motor 33 and azimuth axis moment electricity
Machine 34, tracking servo control system 36, primary mirror 1 and secondary mirror 2 are arranged in lens barrel 32, and lens barrel 32 and folding axial light path are arranged on Horizon
On open frame 35, two torque motors are separately mounted on altitude azimuth form bracket height axle and azimuth axis, tracking servo control system
36 control telescope by driving moment motor follows the tracks of space junk.
Described folding axial light path includes that the first folding axle reflecting mirror 3, first tilts the 4, second folding axle reflecting mirror the 5, the 3rd folding axle
Reflecting mirror 6 and four fold axle reflecting mirror 7, the light beam from extraterrestrial target becomes without defocused laser beam, warp after primary mirror 1, secondary mirror 2 receive
First folding axle reflecting mirror 3 reflection arrives the first tilting mirror 4, and the first tilting mirror 4 revises telescope tracking error back reflection to second
Folding axle reflecting mirror 5, then arrive the first spectroscope 8 in Kuder room through the 3rd folding axle reflecting mirror 6, the reflection of four fold axle reflecting mirror 7.
First spectroscope 8 is the optical glass that diffuse-reflectance LDMS shares with ADAPTIVE OPTICS SYSTEMS, and effect is by from sky
Between target nature luminous reflectance enter adaptive optics light path, the light beam of optical maser wavelength is then through this eyeglass: laser beam transparent first
Spectroscope 8 enters telescope and enters echo reception light to extraterrestrial target transmitting, laser ranging echo beam through the first spectroscope 8
Road.
First folding axle reflecting mirror the 3, first tilting mirror the 4, second folding axle reflecting mirror the 5, the 3rd folding axle reflecting mirror 6, four fold axle
Reflecting mirror 7 is sequentially located at altitude azimuth form frame folding axle point, is used for guiding light beam to enter Kuder room, is used for drawing during Laser emission during reception
Lead laser beam and enter major-minor mirror to extraterrestrial target transmitting.
Described diffuse-reflectance LDMS includes Laser emission light path, echo reception and sounding light path and swashs
Ligh-ranging control circuit and software；
Laser emission light path includes laser instrument 12, minus lens 10 and plus lens 9, and the laser that laser instrument 12 sends is through negative saturating
Launched to space junk by telescope after mirror 10 and plus lens 9；
Echo reception includes tilting mirror 11, pair of alignment lens 13 and 16, aperture 14, mechanical shutter with detection light path
15, narrow band pass filter 17 and detector 18；Tilting mirror 11 is used for launching and receiving light path between receiving light path and laser instrument 12
Conversion: connect laser optical path when Laser emission, telescope light path is in emission state；Receiving light path is connected during echo reception,
Telescope is in reception state；Two sides collimating lens 13 and 16 is confocal, and echo beam is transformed into diameter and detector 18 by them
Receiver aperture match without defocused laser beam；Aperture 14 is positioned at collimating lens focal point, filters different from echo light direction
Noise photon；Mechanical shutter 15 at 10mm, is used for controlling optical circuit and shut-in time before collimating lens focus, filters certain
Noise photon in time period；Narrow band pass filter 17 is positioned at after collimating lens 16, different from echo optical wavelength for filtering
Noise photon；Detector 18 is positioned at optical line terminal, is received back to glistening light of waves and produces echo-signal；
Laser ranging control circuit and software are non-optical devices the most in the optical path, and effect is control Laser emission, returns
Ripple receives and data handling procedure.
Described tilting mirror 11 is coated with high-reflecting film, and has light hole, and light hole is positioned at distance tilting mirror center 80mm.Described
ADAPTIVE OPTICS SYSTEMS include essence tracking system, contracting beam optical path, distorting lens, Hartmann sensor 31 and wave front processor；
Essence tracking system has two-stage, and first order essence is followed the tracks of system and is positioned at after the second spectroscope 19, detects and revises and looks in the distance
Mirror tracking error；
It is 45 ° of reflecting mirrors at pitching spindle nose that first order essence follows the tracks of the first tilting mirror 4 of system, and in Kuder room self adaptation
At the second spectroscope of light path front end, 19 carry out light splitting, and a part of light transmission the second spectroscope 19 enters essence tracking transducer, by picture
Strengthen charge-coupled image sensor ICCD detector 21 and be tracked error detection.
After first imaging lens 20 and ICCD21 is sequentially located at the second spectroscope 19 projecting light path, it is mainly used to monitoring and looks in the distance
Mirror tracking error.
Second level essence follows the tracks of the wavefront overall tilt error caused by Hartmann sensor 31 atmospheric sounding turbulent flow, and second inclines
Tiltedly mirror 25 carries out real-Time Compensation according to the inclination of wave front amount measured；
Contracting beam optical path is positioned at after the reflected light path of the second spectroscope 19, by a pair off axis paraboloidal mirror 22 and 24 and position
Field lens 23 in focus is constituted, and will narrow down to the size matched with distorting lens 26 from telescopical light beam；
After 3rd spectroscope 27 is positioned at distorting lens 26, before the second imaging lens 28；
After second imaging lens 28 is sequentially located at 27 the 3rd spectroscope projecting light paths with imaging CCD29；
After total reflective mirror 30 is positioned at the 3rd spectroscope 27 reflected light path；
After distorting lens 26 is positioned at contracting beam optical path, then it is below the 3rd spectroscope the 27, second imaging lens 28 successively and become
As CCD29, optical line terminal is Hartmann sensor 31；Hartmann sensor 31 be carry out light beam is carried out simultaneously wavefront error and
The detection of second level essence tracking error, wave front processor, as the electronic equipment of non-optical device, is responsible for Hartmann sensor
31 transmit the data come processes, and obtained wavefront ensemble average slope data is used for controlling second level tilting mirror 25 and carries out
Second level essence tracing control, wavefront error data are then used for controlling distorting lens 26 and work, compensate wavefront distortion, after wavefront correction
Image is focused on by the second imaging lens 28, is finally provided high resolution image by the second imaging lens 28 with imaging CCD 29.
Second tilting mirror 25, distorting lens 26, the 3rd spectroscope 27, the second imaging lens 28, imaging CCD29, total reflective mirror 30 He
Mutual distance between Hartmann sensor 31 and position are without specific requirement, under conditions of space allows, as long as light path can
Separate,.
The present invention can be simultaneously used for the photo-electric telescope system of diffuse-reflectance laser ranging and high resolution imaging, including looking in the distance
Mirror system, diffuse-reflectance LDMS and ADAPTIVE OPTICS SYSTEMS.Photo-electric telescope system transmitting laser is to target, from target
The light that reflection comes, after the telescopic system that primary mirror, secondary mirror and folding axle reflecting mirror form, enters Kuder room, at Kuder room light beam quilt
Being divided into two-way, wherein a road is that the echo light that target reflection laser is returned enters echo reception system, produces after multiple optical filtering
Raw laser ranging echo-signal；The sunlight part of target reflection then enters ADAPTIVE OPTICS SYSTEMS, through tilting mirror, distorting lens
After revising the wavefront distortion that atmospheric turbulance produces, imaged system obtains the high resolution target image close to optical diffraction limit.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (5)
1. a diffuse-reflectance laser ranging and the photo-electric telescope system of high resolution imaging synchro measure, it is characterised in that include
Laser emission, echo reception and adaptive optical imaging, specific as follows:
Laser emission: laser ranging control circuit and software send laser firing signals, and the laser in Kuder room passes through laser
Launch light path and enter telescope, then launched to space junk by telescope；
Echo reception: the echo beam from space junk is received by telescope, enters back into echo reception and the echo of Kuder room
Detection light path, produces echo-signal and sends laser ranging control circuit and software to, obtain diffuse-reflectance Laser Measuring after treatment
Away from distance value；
Adaptive optical imaging: space junk light is received by telescope, enters the ADAPTIVE OPTICS SYSTEMS in Kuder room, is contracted
Beam optical path contracting bundle, then given after Wavefront processor detection wavefront overall tilt and wavefront error, and process by Hartmann sensor
Go out wavefront overall tilt amount and wavefront error data, be used for controlling essence tracking system correction inclination of wave front and controlling distorting lens correction
Wavefront error, thus obtain high-definition picture.
2. the diffuse-reflectance laser ranging described in claim 1 and the photo-electric telescope system of high resolution imaging synchro measure, its
It is characterised by including telescopic system, diffuse-reflectance LDMS and ADAPTIVE OPTICS SYSTEMS；Described telescopic system bag
Include 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 peace
Being contained in lens barrel, lens barrel and folding axial light path are arranged in altitude azimuth form frame, and two torque motors are separately mounted to altitude azimuth form frame
On altitude axis and azimuth axis, tracking servo control system controls telescope by driving moment motor and follows the tracks of space junk.
Diffuse-reflectance laser ranging the most according to claim 2 and the photo-electric telescope system of high resolution imaging synchro measure
System, it is characterised in that described diffuse-reflectance LDMS includes Laser emission light path, echo reception and sounding light path
And laser ranging control circuit and software；
Laser emission light path includes laser instrument, minus lens and plus lens, and the laser that laser instrument sends is through minus lens and plus lens
Launched to space junk by telescope afterwards；
Echo reception includes tilting mirror, pair of alignment lens, aperture, mechanical shutter, narrow band pass filter and spy with detection light path
Survey device；Tilting mirror, between receiving light path and laser instrument, is changed with receiving light path for launching: connect laser when Laser emission
Light path, telescope light path is in emission state；Connecting receiving light path during echo reception, telescope is in reception state；Two sides is accurate
Straight lens are confocal, they echo beam is transformed into that diameter and detector Receiver aperture match without defocused laser beam；Aperture
It is positioned at collimating lens focal point, filters the noise photon different from echo light direction；Mechanical shutter is before collimating lens focus
At 10mm, it is used for controlling optical circuit and shut-in time, filters the noise photon in certain period of time；Narrow band pass filter is positioned at standard
After straight lens, for filtering the noise photon different from echo optical wavelength；Detector is positioned at optical line terminal, is received back to glistening light of waves
Produce echo-signal；
Laser ranging control circuit controls Laser emission, echo reception and data handling procedure with software.
Diffuse-reflectance laser ranging the most according to claim 3 and the photo-electric telescope system of high resolution imaging synchro measure
System, it is characterised in that described tilting mirror is coated with high-reflecting film, and has light hole, light hole is positioned at distance tilting mirror center 80mm.
5. look in the distance according to the photoelectricity of the diffuse-reflectance laser ranging described in Claims 2 or 3 or 4 with high resolution imaging synchro measure
Mirror system, it is characterised in that described ADAPTIVE OPTICS SYSTEMS includes that essence tracking system, contracting beam optical path, distorting lens, Hartmann pass
Sensor and wave front processor；
Essence tracking system has two-stage, and first order essence is followed the tracks of system and is positioned at after the second spectroscope, detects and revises telescope and follow the tracks of
Error；Second level essence follows the tracks of the wavefront overall tilt error then caused by Hartmann sensor atmospheric sounding turbulent flow, and second tilts
Mirror carries out real-Time Compensation according to the inclination of wave front amount measured；
Contracting beam optical path is positioned at after second spectroscopical reflected light path, by a pair confocal off axis paraboloidal mirror be positioned at focus
Field lens is constituted, and will narrow down to the size matched with distorting lens from telescopical light beam；
After distorting lens is positioned at contracting beam optical path, being then the 3rd spectroscope and imaging CCD successively below, optical line terminal is Hartmann
Sensor；Hartmann sensor is to carry out light beam carries out wavefront error and the detection of second level essence tracking error simultaneously；Wavefront
Datatron, as the electronic equipment of non-optical device, is responsible for that Hartmann sensor is transmitted the data come and is processed, obtained
Wavefront ensemble average slope data be used for controlling second level tilting mirror and carrying out second level essence tracing control, wavefront error data are then
It is used for controlling distorting lens work, compensates wavefront distortion, finally provided high resolution image by the second imaging lens with imaging CCD.
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