CN103499818A - Infrared and laser compound detection system - Google Patents

Infrared and laser compound detection system Download PDF

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Publication number
CN103499818A
CN103499818A CN201310469759.XA CN201310469759A CN103499818A CN 103499818 A CN103499818 A CN 103499818A CN 201310469759 A CN201310469759 A CN 201310469759A CN 103499818 A CN103499818 A CN 103499818A
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China
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laser
infrared
target
optical
mirror
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CN201310469759.XA
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CN103499818B (en
Inventor
黄庚华
颜洪雷
舒嵘
丁宇星
王海伟
周德力
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Shanghai Institute of Technical Physics of CAS
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Shanghai Institute of Technical Physics of CAS
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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
    • G01S17/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/14—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
    • 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
    • G01S17/66—Tracking systems using electromagnetic waves other than radio waves
    • 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
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The invention discloses an infrared and laser compound detection system, which can realize stable tracking on an infrared moving target and accurate pointing on laser, and realize distance measurement on a target. The system is provided with a fold-back type common-caliber optical receiving head part, infrared rays and laser are separated by using a color separation filter, a small movable target is imaged through an infrared camera, coarse tracking of a two-dimensional rotary table and refined adjusting of a quick deflecting mirror are controlled according to a target centroid position, and emitted laser is accurately pointed to the target. A photomultiplier receives a laser echo signal, and target distance information is worked out according to a laser emission principal wave signal and the echo signal. The system can be carried on an onboard platform, a missile-borne platform and a satellite platform, realizes three-dimensional measurement on an infrared target, and provides information assurance for an aggregate decision.

Description

A kind of infrared and laser complex probe system
Technical field:
The present invention relates to spatial point target detection and location technology, be specifically related to a kind of infrared laser complex probe system, can be applicable to terminal guidance and Space Object Detection.
Background technology:
Traditional large face battle array infrared focus plane is surveyed noncooperative target, great dynamic range characteristics after thering is high sensitivity, high two-dimensional space resolution and joining rear two-dimentional turntable, can under complex environment, realize image processor and the tracking to target, and there is stronger anti-electromagnetic interference capability.But infrared imaging only can obtain the two-dimensional signal of target, can't obtain accurate distance and the velocity information of target.By IR Passive Imaging and Laser Active Detection combination, form infrared/laser bimodulus complex probe, obtain the three-dimensional information of the angle-angle of target-distance, and can coordinate the high speed information disposal system, data fusion target velocity and trace information.
The advantage that adopts infrared imaging/Laser Active Detection Compound Guidance Technology can bring into play both makes up deficiency separately, at first utilize infrared imaging quick detection localizing objects in larger visual field, then utilize Laser Active Detection to obtain the high-resolution intensity image of suspected target and Range Profile, realize the identification of true and false target.And can be according to obtaining Fusion, give totally with maximum Information Assurance, make a policy.
Summary of the invention:
The purpose of this patent is to provide a kind of novel pointing complex probe system that is applied to terminal guidance and Space Object Detection, adopts IR Passive detection of a target orientation accurately to guide laser guide, adopts single photon counting technology detection of a target distance and speed.This patent is conducive to improve overall detection and identify and tracking power to target, gives overall Information Assurance fully.
The native system structure as shown in Figure 1, comprising: thick follower 1, optical telescope 2, quick deflecting mirror 3, generating laser 4, spectrum groupware 5, photomultiplier 6, optical alignment assembly 7, infrared camera 8, laser mirror 9, optical focus assembly 10.
Described thick follower 1 is by angular displacement turntable (pitching ± 15 °, stepping accuracy 200urad) and universal stage (360 °, stepping accuracy 250urad) unitized construction; Described optical telescope 2 is reflective logical light telescopic systems; Described quick deflecting mirror 3 is quick deflecting mirrors of Piezoelectric Ceramic, selects the quick deflecting mirror of piezoelectricity of the S334 model of PI company; Described generating laser 4 is that wavelength is 532nm, the pulsed laser that live width is 0.5nm, and the angle of divergence is 0.2mrad, energy is greater than 3uJ; Described spectrum groupware 5 is by infrared band, the optical module of reflect visible light wave band; Described photomultiplier 6 is single-element detectors of single photon magnitude, selects 10682 type single photon counting pattern pieces of shore pine company; Described optical alignment assembly 7 is return laser beam to be collimated to the optical module of photomultiplier photosurface; Described infrared camera 8 is infrared surface array cameras, and infrared focus plane is selected the 640*512 medium wave refrigeration mode detector of sofradir company, and picture frame frequency is made as 50Hz; Described laser mirror 9 is visible ray completely reflecting mirrors; Described optical focus assembly 10 is infrared band light to be focused on to the optical module of infrared focus plane;
Described quick deflecting mirror 3, generating laser 4, spectrum groupware 5, photomultiplier 6, optical alignment assembly 7, infrared camera 8, laser mirror 9, optical focus assembly 10 all are fixed on optical telescope 2, and along with thick follower 1 rotates; Infrared camera 8 and photomultiplier 6 share optical telescope 2; Deflecting mirror 3 and laser mirror 9 combinations are fixed on generating laser 4 the place aheads fast, and the zero-bit of deflecting mirror 3 is pointed to parallel with optical telescope 2 optical axises fast;
Described generating laser 4 Emission Lasers reflex to quick deflecting mirror 3 by laser mirror 9, point to infrared target; Target reflector laser echo, after optical telescope 2, reflex to the rear photosurface that arrives photomultiplier 6 of optical alignment assembly 7 collimation, exploring laser light echoed signal by spectrum groupware 5; The infrared band spectrum of target, by after optical telescope 2, by spectrum groupware 5 transmissions, focuses on the detector focal plane imaging of infrared camera 8 by optical focus assembly 10.
The principle of work of system is as follows:
The closed search infrared target of thick follower 1 and infrared camera 8, guarantee that target is in the telescope field range, deflecting mirror 3 is adjusted generating laser 4 accurately sensing fast fast, the accurate run-home of pulse laser, photomultiplier 6 detection of photons signals, process by laser main wave signal and photon echo signal, extract target range.
Thick follower is by setting scan mode extensive search target, pattern stops search after the discovery target, low frequency adjustment according to thick tracking keeps target in infrared visual field, and identification target barycenter two dimension orientation drives quick deflecting mirror to rotate, and is that laser accurately points to target.Photomultiplier receives laser single photon signal, by main ripple and echoed signal relevant treatment, calculates the real range information in real time of target, finally reaches the azimuth-range information measurement of target.
Complete system processing controls block diagram as shown in Figure 3.
This patent has following beneficial effect:
Identify target azimuth by IR Passive Imaging, in conjunction with the range observation of active laser high precision, effectively obtain target azimuth and range information, formation is to the angle-angle of target with high precision-range observation, greatly enrich the detection information of target, can be applied in widely target survey of deep space and terminal guidance field.
The accompanying drawing explanation:
Fig. 1 is the infrared of this patent and laser complex probe system construction drawing;
In figure: 1. thick follower; 2. optical telescope; 3. quick deflecting mirror;
4. generating laser; 5. spectrum groupware; 6. photomultiplier;
7. optical alignment assembly; 8. infrared camera; 9. laser mirror;
10. optical focus assembly.
In Fig. 2 infrared camera, target location changes schematic diagram;
In figure: 11. targets are in Wai position, visual field;
12. target is (thick follower searching target result) in Nei position, visual field.
Fig. 3 system processing controls block diagram.
Embodiment:
Embodiment below in conjunction with accompanying drawing to this patent is described in further detail:
1. whole start, thick follower 1 starts scanning by the path of setting, and infrared camera 8 is ceaselessly identified and is found target.When target enters infrared visual field, infrared camera 8 is found also lock onto target, and thick follower 1 stops scanning.Infrared camera calculates the target centroid position, feeds back to main control unit, and the thick follower 1 of master control adjustment relies on the infrared image center to object image spots position, as Fig. 2 shows.
2. Infrared Targets information and laser echo signal are turned back and are focused on spectrum groupware 5 by optical telescope 2, and spectrum groupware sees through infrared band reflect visible light wave band.Infrared band focuses on the imaging focal plane of infrared camera 8 after optical focus assembly 10, infrared camera 8 is selected the medium-wave infrared camera that wave band is 3.7-4.8um, infrared focus plane is selected the 640*512 medium wave refrigeration mode detector of sofradir company, and frame frequency is output as 50Hz.Infrared picture data is minute two-way output after collection plate, and the USB of leading up to is transferred to the computer host computer, and for computer storage, detection, another road directly is transferred to graphics processing unit.Graphics processing unit is processed the barycenter orientation that obtains target to the infrared image real-time analysis, be transferred to main control unit after the barycenter azimuth coding, change two-way after the main control unit decoding into and drive signal to be transferred to the driving circuit of quick deflecting mirror 3, drive quick deflecting mirror to rotate.The laser instrument Emission Lasers arrives quick deflecting mirror 3 by laser mirror 9 reflections, and then points to target.
3., after hitting the mark, return laser beam reflexes to optical alignment assembly 7 by optical telescope 2 spectrum groupware 5 of turning back, and finally arrives photomultiplier 6 photosurfaces.The 10682 type single photon counting pattern pieces of photomultiplier 6(shore pine) the single photon information that response is returned, unit while exporting the TTL pulse signal to survey, during survey, unit produces main ripple signal in conjunction with 4 emissions of pulsed laser transmitter, calculate the time interval of each echo single photon and main ripple, result of calculation all is input to main control unit, main control unit extracts the real time interval by time correlation and Poisson filtering algorithm, and is converted to distance value output.

Claims (1)

  1. One kind infrared with laser complex probe system, it comprises: thick follower (1), optical telescope (2), quick deflecting mirror (3), generating laser (4), spectrum groupware (5), photomultiplier (6), optical alignment assembly (7), infrared camera (8), laser mirror (9), optical focus assembly (10) is characterized in that:
    Described thick follower (1) is that stepping accuracy be the 200urad angle of pitch is the unitized construction of the angular displacement turntable of ± 15 ° and the stepping accuracy 360 ° of universal stages that are 250urad; Described optical telescope (2) is reflective logical light telescopic system; Described quick deflecting mirror (3) is the quick deflecting mirror of Piezoelectric Ceramic, selects the quick deflecting mirror of piezoelectricity of the S334 model of PI company; Described generating laser (4) is that wavelength is 532nm, and live width is 0.5nm, and the angle of divergence is 0.2mrad, and energy is greater than the pulsed laser of 3uJ; Described spectrum groupware (5) is by infrared band, the optical module of reflect visible light wave band; Described photomultiplier (6) is the single-element detector of single photon magnitude, selects 10682 type single photon counting pattern pieces of shore pine company; Described optical alignment assembly (7) is return laser beam to be collimated to the optical module of photomultiplier photosurface; Described infrared camera (8) is the infrared surface array camera, and infrared focus plane is selected the 640*512 medium wave refrigeration mode detector of sofradir company, and picture frame frequency is made as 50Hz; Described laser mirror (9) is the visible ray completely reflecting mirror; Described optical focus assembly (10) is infrared band light to be focused on to the optical module of infrared focus plane;
    It is upper that described quick deflecting mirror (3), generating laser (4), spectrum groupware (5), photomultiplier (6), optical alignment assembly (7), infrared camera (8), laser mirror (9), optical focus assembly (10) all are fixed on optical telescope (2), and along with thick follower (1) rotates; Infrared camera (8) and photomultiplier (6) share optical telescope (2); Deflecting mirror (3) and laser mirror (9) combination are fixed on generating laser (4) the place ahead fast, and the zero-bit of deflecting mirror (3) is pointed to parallel with optical telescope (2) optical axis fast;
    Described generating laser (4) Emission Lasers reflexes to quick deflecting mirror (3) by laser mirror (9), points to infrared target; Target reflector laser echo, after optical telescope (2), reflex to the rear photosurface that arrives photomultiplier (6) of optical alignment assembly (7) collimation, exploring laser light echoed signal by spectrum groupware (5); The infrared band spectrum of target, by after optical telescope (2), by spectrum groupware (5) transmission, focuses on the detector focal plane imaging of infrared camera (8) by optical focus assembly (10).
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Cited By (26)

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CN104536009A (en) * 2014-12-30 2015-04-22 华中科技大学 Laser infrared composite ground building recognition and navigation method
CN104730537A (en) * 2015-02-13 2015-06-24 西安电子科技大学 Infrared/laser radar data fusion target tracking method based on multi-scale model
CN105510926A (en) * 2015-12-23 2016-04-20 武汉高德红外股份有限公司 Assembly structure of multi-band composite detection early warning system
CN105700539A (en) * 2016-02-04 2016-06-22 青岛市光电工程技术研究院 Laser information serial processing device
CN106643689A (en) * 2016-09-19 2017-05-10 中国运载火箭技术研究院 Multi-mode common-optical path pose measuring apparatus
CN106842350A (en) * 2016-12-26 2017-06-13 首都师范大学 Combine moving target detecting system and detection method with platform different resolution sensor
CN108508503A (en) * 2017-02-27 2018-09-07 北京航空航天大学 A kind of achievable collection of illustrative plates and the remote-sensing imaging system of the integrated detection of structural information
CN109341868A (en) * 2018-12-03 2019-02-15 北京遥感设备研究所 A kind of sensitivity Auto-Test System and method
CN109507110A (en) * 2018-09-27 2019-03-22 中国船舶工业系统工程研究院 A kind of laser detection system warship turntable
CN110186650A (en) * 2019-06-17 2019-08-30 哈尔滨工业大学 The infrared three mould complex target simulator of visible light of new pattern laser
CN110471073A (en) * 2019-09-25 2019-11-19 浙江缔科新技术发展有限公司 A kind of light quantum angle measurement telescope and angle-measuring method
CN110824490A (en) * 2019-09-27 2020-02-21 深圳奥锐达科技有限公司 Dynamic distance measuring system and method
CN111007527A (en) * 2019-12-14 2020-04-14 中国船舶重工集团公司第七一七研究所 Infrared laser composite rapid imaging tracking device
CN111158061A (en) * 2019-12-31 2020-05-15 中国船舶重工集团公司第七一七研究所 Multi-dimensional information detection device and measurement method thereof
CN111656126A (en) * 2017-09-12 2020-09-11 以色列宇航工业有限公司 Active seeker system
CN111768414A (en) * 2020-06-05 2020-10-13 哈尔滨新光光电科技股份有限公司 Photoelectric rapid aiming method and device for laser countermeasure system
CN112051584A (en) * 2020-08-13 2020-12-08 哈尔滨工业大学 Airborne dual-wavelength area array imaging laser radar structure
CN112578398A (en) * 2020-12-07 2021-03-30 中国工程物理研究院应用电子学研究所 Double-focal-plane detection and identification system and detection and identification method
CN113296079A (en) * 2021-07-27 2021-08-24 南京天朗防务科技有限公司 Remote photoelectric detection system
CN113424013A (en) * 2019-02-12 2021-09-21 Bae系统信息和电子系统集成有限公司 Projectile guidance system
CN113655488A (en) * 2021-06-30 2021-11-16 武汉高德红外股份有限公司 Infrared alarm system for rapid periodic scanning directional distance measurement and distance measurement method thereof
CN114859371A (en) * 2022-07-07 2022-08-05 武汉光谷航天三江激光产业技术研究院有限公司 Unmanned aerial vehicle bee colony high-resolution composite detection system and method
CN115308759A (en) * 2022-06-29 2022-11-08 中国科学院微小卫星创新研究院 Satellite-borne active-passive integrated ultra-long-distance single photon space debris ranging and positioning system and method
CN116105694A (en) * 2022-12-09 2023-05-12 中国科学院上海技术物理研究所 Multi-means optical load composite space target three-dimensional vision measurement method
CN118068350A (en) * 2024-04-25 2024-05-24 中国科学院长春光学精密机械与物理研究所 Far-distance infrared imaging and distance measuring device and application thereof
CN118068348A (en) * 2024-04-25 2024-05-24 中国科学院长春光学精密机械与物理研究所 Single-station photoelectric positioning measurement device

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CN104536009A (en) * 2014-12-30 2015-04-22 华中科技大学 Laser infrared composite ground building recognition and navigation method
CN104536009B (en) * 2014-12-30 2016-12-28 华中科技大学 Above ground structure identification that a kind of laser infrared is compound and air navigation aid
CN104730537A (en) * 2015-02-13 2015-06-24 西安电子科技大学 Infrared/laser radar data fusion target tracking method based on multi-scale model
CN104730537B (en) * 2015-02-13 2017-04-26 西安电子科技大学 Infrared/laser radar data fusion target tracking method based on multi-scale model
CN105510926A (en) * 2015-12-23 2016-04-20 武汉高德红外股份有限公司 Assembly structure of multi-band composite detection early warning system
CN105700539A (en) * 2016-02-04 2016-06-22 青岛市光电工程技术研究院 Laser information serial processing device
CN106643689A (en) * 2016-09-19 2017-05-10 中国运载火箭技术研究院 Multi-mode common-optical path pose measuring apparatus
CN106842350B (en) * 2016-12-26 2020-04-10 首都师范大学 Same-platform different-resolution sensor combined moving target detection system and detection method
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CN108508503A (en) * 2017-02-27 2018-09-07 北京航空航天大学 A kind of achievable collection of illustrative plates and the remote-sensing imaging system of the integrated detection of structural information
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CN109507110A (en) * 2018-09-27 2019-03-22 中国船舶工业系统工程研究院 A kind of laser detection system warship turntable
CN109341868A (en) * 2018-12-03 2019-02-15 北京遥感设备研究所 A kind of sensitivity Auto-Test System and method
CN109341868B (en) * 2018-12-03 2020-11-13 北京遥感设备研究所 Automatic sensitivity testing system and method
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CN110186650A (en) * 2019-06-17 2019-08-30 哈尔滨工业大学 The infrared three mould complex target simulator of visible light of new pattern laser
CN110471073A (en) * 2019-09-25 2019-11-19 浙江缔科新技术发展有限公司 A kind of light quantum angle measurement telescope and angle-measuring method
CN110471073B (en) * 2019-09-25 2023-06-16 浙江缔科新技术发展有限公司 Light quantum angle measurement telescope and angle measurement method
CN110824490A (en) * 2019-09-27 2020-02-21 深圳奥锐达科技有限公司 Dynamic distance measuring system and method
CN111007527A (en) * 2019-12-14 2020-04-14 中国船舶重工集团公司第七一七研究所 Infrared laser composite rapid imaging tracking device
CN111007527B (en) * 2019-12-14 2021-09-14 中国船舶重工集团公司第七一七研究所 Infrared laser composite rapid imaging tracking device
CN111158061A (en) * 2019-12-31 2020-05-15 中国船舶重工集团公司第七一七研究所 Multi-dimensional information detection device and measurement method thereof
CN111768414A (en) * 2020-06-05 2020-10-13 哈尔滨新光光电科技股份有限公司 Photoelectric rapid aiming method and device for laser countermeasure system
CN112051584A (en) * 2020-08-13 2020-12-08 哈尔滨工业大学 Airborne dual-wavelength area array imaging laser radar structure
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CN113655488A (en) * 2021-06-30 2021-11-16 武汉高德红外股份有限公司 Infrared alarm system for rapid periodic scanning directional distance measurement and distance measurement method thereof
CN113296079B (en) * 2021-07-27 2021-10-26 南京天朗防务科技有限公司 Remote photoelectric detection system
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