CN103308284A - Bicolor filter based two-waveband infrared target simulator and generation method of two-waveband infrared images of same - Google Patents
Bicolor filter based two-waveband infrared target simulator and generation method of two-waveband infrared images of same Download PDFInfo
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Abstract
The invention discloses a bicolor filter based two-waveband infrared target simulator and a generation method of two-waveband infrared images of the same, relates to the technical field of infrared and simulation and aims at solving the problem that the bicolor simulator for performance test of an infrared bicolor imaging system cannot adjust the energy ratio. The generation method includes that a computer transmits signals to a video control circuit and a stepping motor controller, the signals are then sent to a driving circuit control scene generator for generating scenes, a stepping motor drives a bicolor filter to rotate to perform radiation filtering, images pass a projection optical system, and a tested system is lighted. When the simulator is debugged, the frame frequency of the scene generator is led to be twice that of the tested system, and the rotating frequency of the stepping motor is led to be the frame frequency of tested system. The computer sends image signals and control signals, the single waveband portion of the bicolor filter corresponds to one frame of the scene generator, each frame of image is filtered through the filter, and the computer controls energy of each frame of image generated by the scene generator so as to control the energy ratio of two wavebands . The bicolor filter based two-waveband infrared target simulator and the generation method of the two-waveband infrared images of the same are used for testing of an infrared imaging system.
Description
Technical field
The present invention relates to infrared technique field and simulation technical field, relate in particular to the generation method of the dual-band infrared image of a kind of dual-band infrared target simulator for test infrared imaging device performance and this simulator.
Background technology
In the latter stage of infra-red thermal imaging system development, need a kind of can either save that funds again can the accurate evaluation system performance in the indoor method of finishing, method commonly used is to utilize the infrared scene analogue system that the target scene is simulated to test infrared imaging system at present.As the core of infrared simulation system, infrared target simulator is the primary study content at each large infrared weapon test center, the world.
Along with the development of various infrared imaging countermeasure techniques, the detection of single wave band can not have been satisfied the request for utilization of infrared imaging system, so infrared detection technique is being surveyed development gradually from single wave band to two waveband.At present countries in the world have been developed multiple Dual band IR guided weapon, and China is also in the research that steps up aspect this.Meanwhile, the development for the double-colored target simulator of infrared double color imaging system performance test also is the primary study project of each simulation laboratory of the world.
For the two waveband target simulator, adjusting energy is than being very important technical requirement.Yet existing double-colored simulator for the performance test of infrared double color imaging system adopts two scene generation devices to two independent imagings of wave band mostly, through the subsequent optical system the synthetic sub-picture of two width of cloth images is realized the simulation of two waveband scene again.Although this double-colored simulator energy Ratios for the performance test of infrared double color imaging system is adjustable, has not only improved development cost, also makes projection optical system structure complicated, debugging and design difficulty strengthen, and make the registration of two images be not easy control.And the generation method of the dual-band infrared image of present two waveband simulator for using a slice scene generation device can not be regulated the energy Ratios of two wave bands, and analog capability is limited, is merely able to for a certain target simulation.
Summary of the invention
For solving at present the energy Ratios of two wave bands of problem can not regulate to(for) the generation method of the dual-band infrared image of the two waveband simulator that uses a slice scene generation device, the present invention proposes the generation method based on the dual-band infrared image of the dual-band infrared target simulator of double-colored filter plate and this simulator.
Dual-band infrared target simulator based on double-colored filter plate comprises computing machine, screen treatment circuit, video driver circuit, controllor for step-by-step motor, stepper motor, scene generation device, double-colored filter plate and projection optical system,
The image signal output end of computing machine links to each other with the picture signal input end of video processing circuits, the control signal output terminal of video processing circuits links to each other with the control signal input end of video driver circuit, the driving signal output part of video driver circuit links to each other with the driving signal input of scene generation device, the light transmitting terminal of described scene generation device is positioned on the object space focal plane of projection optical system, and the output optical axis of this scene generation device and the optical axis of described projection optical system are the same straight line, double-colored filter plate is between scene generation device and projection optical system, the infrared radiating light of scene generation device emission is incident to first double-colored filter plate, after the infrared radiating light of this double-colored filter plate transmission was incident to projection optical system, the infrared radiating light after this projection optical system transmission was the output light of dual-band infrared target simulator; The control signal output terminal of computing machine links to each other with the control signal input end of controllor for step-by-step motor, the control signal output terminal of controllor for step-by-step motor links to each other with the control signal input end of stepper motor, and stepper motor is used for driving double-colored filter plate and rotates take its center as axle.
Described scene generation device is image Resistor Array Projector or DMD micro mirror element.
Described projection optical system, comprise convex lens, No. two convex lens and No. three convex lens, the infrared radiating light that is incident to projection optical system converts parallel beam to through convex lens, this parallel beam is incident to No. two convex lens, converts parallel beam output to through No. two convex lens and No. three convex lens, distance between the rear focus of No. three convex lens and No. two convex lens equals the front focal length of No. three convex lens
Described double-colored filter plate, described double-colored filter plate is circular wave plate, double-colored filter plate is divided into two filter field by one bar diameter, and each filter field can only see through the infrared radiating light of single wave band, and the wave band of the infrared radiating light of two filter field institutes transmission is not identical.
Generation method based on the dual-band infrared image of the dual-band infrared target simulator of above-mentioned double-colored filter plate:
Step 1, by the frame frequency of computer installation scene generation device and the rotational frequency of stepper motor, make the frame frequency of scene generation device equal the twice of system to be measured frame frequency, the rotational frequency of stepper motor equals the frame frequency of system under test (SUT).
Two infrared band energy Ratios in the described dual-band infrared image are the energy Ratios of the respective frame image of scene generation device generation.
Principle of work based on the dual-band infrared target simulator of double-colored filter plate:
Computing machine produces picture signal and flows to video processing circuits, and video processing circuits generates control signal and flows to video driver circuit, video driver circuit control scene generation device generation scene; Meanwhile, computing machine also produces control signal and flows to controllor for step-by-step motor, and controllor for step-by-step motor generates the double-colored filter plate rotation of control signal control step driven by motor to the processing that filters of the light of scene maker spare generation.
The present invention has the following advantages:
1, projection optical system of the present invention is simple in structure is easy to development, and design and processing cost are low, uses and debugs simple.
2, the present invention adopts a slice scene generation device to realize the two waveband simulation, image registration problem when having avoided using two scene generation devices, and can freely control two wave band energy Ratios in the dual-band infrared image that generates, realize the dual-band infrared scene of simulation different target.
Description of drawings
Fig. 1 is the structural representation of the dual-band infrared target simulator based on double-colored filter plate of the present invention,
Fig. 2 is embodiment five described double-colored filter plate structural representations.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, the described dual-band infrared target simulator based on double-colored filter plate of present embodiment, comprise computing machine 1, video processing circuits 2, video driver circuit 3, controllor for step-by-step motor 4, stepper motor 5, scene generation device 6, double-colored filter plate 7 and projection optical system 8
The image signal output end of computing machine 1 links to each other with the picture signal input end of video processing circuits 2, the control signal output terminal of video processing circuits 2 links to each other with the control signal input end of video driver circuit 3, the driving signal output part of video driver circuit 3 links to each other with the driving signal input of scene generation device 6, the light transmitting terminal of described scene generation device 6 is positioned on the object space focal plane of projection optical system 8, and the optical axis of the output optical axis of this scene generation device 6 and described projection optical system 8 is the same straight line, double-colored filter plate 7 is between scene generation device 6 and projection optical system 8, the infrared radiation optical fiber of scene generation device 6 emissions is incident to double-colored filter plate 7, after the infrared radiating light of these double-colored filter plate 7 transmissions was incident to projection optical system 8, the infrared radiating light after these projection optical system 8 transmissions was the output light of dual-band infrared target simulator; The control signal output terminal of computing machine 1 links to each other with the control signal input end of controllor for step-by-step motor 4, the control signal output terminal of controllor for step-by-step motor 4 links to each other with the control signal input end of stepper motor 5, and stepper motor 5 is used for driving double-colored filter plate 7 and rotates take its center as axle.
Embodiment two: the difference of the described dual-band infrared target simulator based on double-colored filter plate of present embodiment and embodiment one is, described scene generation device 6 is the image Resistor Array Projector.
Embodiment three: the difference of the described dual-band infrared target simulator based on double-colored filter plate of present embodiment and embodiment one is, described scene generation device 6 is the DMD micro mirror element.
Embodiment four: present embodiment is described in conjunction with Fig. 1, the difference of the described dual-band infrared target simulator based on double-colored filter plate of present embodiment and embodiment one is, described projection optical system 8 comprises convex lens 9 No. one, No. two convex lens 10 and No. three convex lens 11, the infrared radiating light that is incident to projection optical system 8 converts parallel beam to through convex lens 9, this parallel beam is incident to convex lens 10 No. two, convert parallel beam output to through No. two convex lens 10 and No. three convex lens 11, the distance between the rear focus of No. three convex lens 11 and No. two convex lens 10 equals the front focal length of No. three convex lens 11.
The parameter of described convex lens 9, No. two convex lens 10 and No. three convex lens 11 is selected according to the parameter of system under test (SUT) 12.
Embodiment five: present embodiment is described in conjunction with Fig. 2, the described dual-band infrared target simulator based on double-colored filter plate of present embodiment and embodiment one difference be, described double-colored filter plate 7 is circular wave plate, double-colored filter plate 7 is divided into two filter field by one bar diameter, each filter field can only see through the infrared radiating light of single wave band, and the wave band of the infrared radiating light of two filter field institutes transmission is not identical.
The filter range of two parts of double-colored filter plate 7 is selected according to system under test (SUT) 12, and two wave bands at system under test (SUT) 12 places are the filter range of two parts of double-colored filter plate 7.
Embodiment six: in conjunction with Fig. 1 present embodiment is described, present embodiment is described to be the generation method of the dual-band infrared image of the described dual-band infrared target simulator based on double-colored filter plate of embodiment one:
Step 1, the rotational frequency of frame frequency and the stepper motor 5 of scene generation device 6 is set by computing machine 1, makes the frame frequency of scene generation device 6 equal the twice of system to be measured frame frequency, the rotational frequency of stepper motor 5 equals the frame frequency of system under test (SUT) 12.
Two infrared band energy Ratios in the described dual-band infrared image are the energy Ratios of the respective frame image of scene generation device 6 generations.
The structure of the dual-band infrared target simulator based on double-colored filter plate of the present invention is not limited to the concrete structure that the respective embodiments described above are put down in writing, and can also be the reasonable combination of the concrete technical characterictic put down in writing of the respective embodiments described above.
Claims (6)
1. based on the dual-band infrared target simulator of double-colored filter plate, it comprises computing machine (1), video processing circuits (2), video driver circuit (3), controllor for step-by-step motor (4), stepper motor (5), scene generation device (6), double-colored filter plate (7) and projection optical system (8)
The image signal output end of computing machine (1) links to each other with the picture signal input end of video processing circuits (2), the control signal output terminal of video processing circuits (2) links to each other with the control signal input end of video driver circuit (3), the driving signal output part of video driver circuit (3) links to each other with the driving signal input of scene generation device (6), the light transmitting terminal of described scene generation device (6) is positioned on the object space focal plane of projection optical system (8), and the optical axis of the output optical axis of this scene generation device (6) and described projection optical system (8) is the same straight line, double-colored filter plate (7) is positioned between scene generation device (6) and the projection optical system (8), the infrared radiating light that scene generation device (6) sends is incident to first double-colored filter plate (7), after the infrared radiating light of process double-colored filter plate (7) transmission was incident to projection optical system (8), the infrared radiating light after this projection optical system (8) transmission was the output light of dual-band infrared target simulator; The control signal output terminal of computing machine (1) links to each other with the control signal input end of controllor for step-by-step motor (4), the control signal output terminal of controllor for step-by-step motor (4) links to each other with the control signal input end of stepper motor (5), and stepper motor (5) is used for driving double-colored filter plate (7) and rotates take its center as axle.
2. the dual-band infrared target simulator based on double-colored filter plate according to claim 1 is characterized in that, scene generation device (6) is the image Resistor Array Projector.
3. the dual-band infrared target simulator based on double-colored filter plate according to claim 1 is characterized in that, scene generation device (6) is the DMD micro mirror element.
4. described dual-band infrared target simulator based on double-colored filter plate according to claim 1, it is characterized in that, projection optical system (8) comprises convex lens (9), No. two convex lens (10) and No. three convex lens (11), the infrared radiating light that is incident to projection optical system (8) converts parallel beam to through convex lens (9), this parallel beam is incident to No. two convex lens (10), convert parallel beam output to through No. two convex lens (10) and No. three convex lens (11), the distance between the rear focus of No. three convex lens (11) and No. two convex lens (10) equals the front focal length of No. three convex lens (11).
5. described dual-band infrared target simulator based on double-colored filter plate according to claim 1, it is characterized in that, described double-colored filter plate (7) is circular wave plate, double-colored filter plate (7) is divided into two filter field by one bar diameter, each filter field can only the single wave band of transmission infrared radiating light, and the wave band of the infrared radiating light of two filter field institutes transmission is not identical.
6. based on the generation method of the dual-band infrared image of the dual-band infrared target simulator of double-colored filter plate claimed in claim 1:
Step 1, the rotational frequency of frame frequency and the stepper motor (5) of scene generation device (6) is set by computing machine (1), make the frame frequency of scene generation device (6) equal the twice of system under test (SUT) (12) frame frequency, the rotational frequency of stepper motor (5) equals the frame frequency of system under test (SUT) (12);
Step 2, scene generation device (6) is synthetic image under the frequency of setting, the energy of every two field picture that computing machine (1) control scene generation device (6) generates, simultaneously, computing machine (1) is gone back control step motor (5) and is rotated under the rotational frequency of setting, and then drive double-colored filter plate (7) and rotate, and so that partly be positioned between the light transmitting terminal of scene generation device (6) and the projection optical system (8) at the single wave band that scene generation device (6) produces double-colored filter plate (7) in the process of a two field picture and realize filtering, so that two width of cloth images that scene generation device (6) generates obtain respectively the image of two wave bands after two filter field filtering of double-colored filter plate (7), the image of described two wave bands all sends to projection optical system (8), and then the generation of realization dual-band infrared image
Two infrared band energy Ratios in the described dual-band infrared image are the energy Ratios of the respective frame image of scene generation device (6) generation.
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| CN103529550A (en) * | 2013-10-29 | 2014-01-22 | 哈尔滨工业大学 | Infrared broadband target simulation optical system |
| CN103528440A (en) * | 2013-11-05 | 2014-01-22 | 哈尔滨工业大学 | Infrared bicolor scene simulation device and method based on variable filter |
| CN103759588A (en) * | 2014-01-25 | 2014-04-30 | 哈尔滨工业大学 | Infrared two-color target simulation device and method based on double optical filters |
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| CN108152937A (en) * | 2017-11-13 | 2018-06-12 | 长春理工大学 | In infrared/long wave Zooming-projection camera lens |
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| CN103529550A (en) * | 2013-10-29 | 2014-01-22 | 哈尔滨工业大学 | Infrared broadband target simulation optical system |
| CN103528440A (en) * | 2013-11-05 | 2014-01-22 | 哈尔滨工业大学 | Infrared bicolor scene simulation device and method based on variable filter |
| CN103528440B (en) * | 2013-11-05 | 2015-08-05 | 哈尔滨工业大学 | Based on infrared double color scene analogue means and the method for gradual filter |
| CN103759588A (en) * | 2014-01-25 | 2014-04-30 | 哈尔滨工业大学 | Infrared two-color target simulation device and method based on double optical filters |
| CN104754250A (en) * | 2015-03-26 | 2015-07-01 | 上海市刑事科学技术研究院 | Infrared imaging and evidence collecting system based on acousto-optic tunable light filter and method of correcting image surface drift |
| CN104754250B (en) * | 2015-03-26 | 2018-04-06 | 上海市刑事科学技术研究院 | The method of infrared imaging evidence-obtaining system and its correction image planes drift based on acousto-optic tunable filter |
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| CN105334636B (en) * | 2015-12-15 | 2017-12-15 | 北京振兴计量测试研究所 | A kind of long-focus infrared target simulator |
| CN106468523A (en) * | 2016-09-23 | 2017-03-01 | 哈尔滨工业大学 | A kind of miniaturization is infrared/laser Shared aperture target simulator |
| CN106468523B (en) * | 2016-09-23 | 2018-05-22 | 哈尔滨工业大学 | A kind of infrared/laser Shared aperture the target simulator of miniaturization |
| CN108152937A (en) * | 2017-11-13 | 2018-06-12 | 长春理工大学 | In infrared/long wave Zooming-projection camera lens |
| CN108152937B (en) * | 2017-11-13 | 2020-04-14 | 长春理工大学 | Infrared medium/long wave zooming projection lens |
| CN108181703A (en) * | 2017-12-28 | 2018-06-19 | 哈尔滨工业大学 | A kind of infrared multiband optical alignment projection arrangement based on five-axis flight table |
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Free format text: CORRECT: INVENTOR; FROM: ZHOU CHENGHAO WANG ZHILE ZHANG YIN QIAN YULONG SONG YU TO: ZHOU CHENGHAO WANG ZHILE ZHU YAO CENG CHENGYU JIE FANG REN GUOTAO ZHANG YIN QIAN YULONG ZHANG MINGYI |
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Inventor after: Zhou Chenghao Inventor after: Ren Guodao Inventor after: Teng Yu Inventor after: Wang Zhile Inventor after: Zhu Yao Inventor after: Zhang Yin Inventor after: Qian Yulong Inventor after: Hao Shijing Inventor after: Xu Jun Inventor after: Dong Baixu Inventor after: Ma Chi Inventor before: Zhou Chenghao Inventor before: Wang Zhile Inventor before: Zhu Yao Inventor before: Zeng Chengyu Inventor before: Jie Fang Inventor before: Ren Guodao Inventor before: Zhang Yin Inventor before: Qian Yulong Inventor before: Zhang Mingdai |
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Free format text: CORRECT: INVENTOR; FROM: ZHOU CHENGHAO WANG ZHILE ZHU YAO CENG CHENGYU JIE FANG REN GUOTAO ZHANG YIN QIAN YULONG ZHANG MINGYI TO: ZHOU CHENGHAO WANG ZHILE ZHU YAO ZHANG YIN QIAN YULONG HAO SHIQING XU JUN DONG BAIXU MA CHI REN GUOTAO TENG YU |
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Inventor after: Zhou Chenghao Inventor after: Wang Zhile Inventor after: Zhu Yao Inventor after: Zeng Chengyu Inventor after: Jie Fang Inventor after: Ren Guodao Inventor after: Zhang Yin Inventor after: Qian Yulong Inventor after: Zhang Mingdai Inventor before: Zhou Chenghao Inventor before: Ren Guodao Inventor before: Teng Yu Inventor before: Wang Zhile Inventor before: Zhu Yao Inventor before: Zhang Yin Inventor before: Qian Yulong Inventor before: Hao Shijing Inventor before: Xu Jun Inventor before: Dong Baixu Inventor before: Ma Chi |
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Effective date of registration: 20200331 Address after: 150001 No. 118 West straight street, Nangang District, Heilongjiang, Harbin Patentee after: Harbin University of technology high tech Development Corporation Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: HARBIN INSTITUTE OF TECHNOLOGY |
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