CN108413812B - Infrared multispectral section of dynamic scene simulator and method - Google Patents
Infrared multispectral section of dynamic scene simulator and method Download PDFInfo
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- CN108413812B CN108413812B CN201810065203.7A CN201810065203A CN108413812B CN 108413812 B CN108413812 B CN 108413812B CN 201810065203 A CN201810065203 A CN 201810065203A CN 108413812 B CN108413812 B CN 108413812B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
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- F41G3/32—Devices for testing or checking
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Abstract
The present invention proposes a kind of infrared multispectral section of scenario simulation device and method, is mainly used in missile brain HWIL simulation.It is made of wideband light source, spectrum gate, video modulator, drive control computer, scenario simulation computer, collimating mirror first class sections, spectrum gate and video modulator are by MEMS device as core component, optical path realizes the simulation output of infrared multispectral section of scene using the single channel process of " spectrum → spectrum gating → image modulation " under system unified clock using timesharing analogy method.
Description
Technical field
The present invention relates to equipment Control Systems to emulate field, and in particular to a kind of infrared multispectral section of dynamic scene simulator
And method, it is mainly used in missile brain HWIL simulation.
Background technique
In infrared precise guidance field, to adapt to increasingly complex environment and fierce confrontation, multi-spectral imaging guidance technology
It is increasingly subject to the concern of various countries researcher.Infrared multispectral section of guidance technology is distinguishing bait interference, cloud layer, sea/ground background, the sun
Have significant advantage in terms of the complex environments such as reflection, target and interference are effectively detected using spectral information difference, known
It not and tracks, improve the guidance precision of guided missile and enhances its interference free performance.
The development of increasingly complicated battlefield surroundings and infrared multispectral section of guidance technology proposes guidance semi-matter simulating system
The requirement of truer simulation complex environment, in l-G simulation test, how target, interference and the back in mock battle scene
The physical characteristics such as geometrical property, kinetic characteristic and the spectral characteristics of radiation of scape are most important.And at present both at home and abroad multispectral section at
The research achievement as disclosed in emulation field is less, the mostly simulation of single band or two waveband scene, and the more persons of wave band number are no more than 3
It is a, and the mode for mostly using multi-source multichannel compound completes double/tri- wave bands simulation, these tradition pair/tri- wave band composite analogies
Method to cannot achieve spectrum controllable, and there is scheme limitation when scene simulated spectrum number of segment is higher, it is difficult to complete multispectral
Section scene simulation.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of infrared multispectral section of dynamic scene simulators
And method.
The infrared multispectral section of dynamic scene simulator of one kind provided according to the present invention, comprising: wideband light source, spectrum gating
Device, video modulator, collimation camera lens, guidance detector；
The emergent ray of wideband light source reaches guidance and visits successively by spectrum gate, video modulator, collimation camera lens
Survey device.
Preferably, comprising: drive control computer, scenario simulation computer；
It is real using timesharing analogy method under the clock of drive control computer and the scene of scenario simulation computer settings
The simulation output of existing multispectral section of IR Scene.
Preferably, spectrum gate, video modulator include MEMS device；
Spectrum gate, video modulator realize spectrum gating, space light modulation respectively；
Spectrum gate, video modulator MEMS device between link modulation, realize infrared multispectral section of scenario simulation
Drive control.
Preferably, spectrum gate includes reflecting mirror, and spectrum gate includes Amici prism or grating；Wideband light source
Emergent ray is successively exported by MEMS device, reflecting mirror to video modulator by Amici prism or grating.
Preferably, video modulator includes reflecting mirror, light uniforming device；
Light from spectrum gate successively passes through light uniforming device, reflecting mirror, MEMS device and projects.
Preferably, it is run under unified clock, while opening guidance detector photoelectric integration, passes through drive control meter
Calculation machine drive control spectrum gate, video modulator generate single band scene image, and are guided after optical device
The infrared focus plane of detector incudes, that is, completes the scene image projection process of a wave band；Then, immediately one under drive control
The scene projection process of a wave band re-starts spectrum gating and image modulation, be projected to guidance detection by optical device
Device；It is divided according to emulation demand and guidance detector sensitivity spectral coverage, a photoelectric integration period in guidance detector photosensitive area
It is inside sequentially completed the simulation process of each spectral coverage scene image, and the projection duration of each spectral coverage scene is identical.
Preferably, the form that the micromirror of the different zones of MEMS device corresponds to the illuminating bundle of different spectral coverage completes spectrum
Controllably, i.e., by a branch of full spectral coverage infrared illumination after prism or grating beam splitting uniform irradiation in the micro- of MEMS device different zones
On eyeglass.
Preferably, optical path information modulation is using the single channel stream for successively carrying out spectrum, spectrum gating, image modulation
Journey, optical routing wideband light source are issued, are then passed through through Amici prism or grating, then through spectrum gate using optical spectral modulator
It crosses optical device and completes projection process.
Preferably, the simulation of open score section is carried out to the IR Scene under the sensitive spectral coverage of guidance detector, at detector one
In the photoelectric integration time cycle, the scene image of each spectral coverage, and each spectral coverage are successively simulated in timesharing under unified clock control
The projection duration of scene is identical.
The infrared multispectral section of dynamic scene analogy method of one kind provided according to the present invention, it is dynamic using described infrared multispectral section
State scenario simulation device executes infrared multispectral section of dynamic scene simulation.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention proposes a kind of infrared multispectral section of scenario simulation device and method, and it is real to be mainly used in missile brain half
Object emulation.By wideband light source, spectrum gate, video modulator, drive control computer, scenario simulation computer, collimating mirror
By MEMS device as core component, optical path uses " spectrum for first class sections composition, spectrum gate and video modulator
The single channel process of → spectrum gating → image modulation " is infrared more using the realization of timesharing analogy method under system unified clock
The simulation output of spectral coverage scene.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of infrared multispectral section of scenario simulation principle of device schematic diagram
Fig. 2 is a kind of infrared multispectral section of scenario simulation method control sequential figure
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
It is an object of the invention to realize the spectral signature of realistic simulation IR Scene, infrared 2~12 μm of spectral domains are drawn
Be divided into multiple tiny wave bands, the infrared multispectral characteristic of scene studied, by infrared multispectral section of scenario simulation device and
Method realizes the simulation output of the multispectral section of IR Scene image comprising spectral information.The invention proposes a kind of infrared multispectral
Section dynamic scene simulator and method.The device is mainly by wideband light source, spectrum gate, video modulator, drive control
The part such as module, scenario simulation computer, optical device forms.Spectrum gate by MEMS device as core component, to complete
Spectral coverage light source carries out sensitivity spectrum gating；Video modulator by another group of MEMS device as core component, respectively to each spectrum
The radiation intensity of each pixel of the lower scene image of section carries out spatial modulation；It, can be real by two groups of MEMS device linkage modulation
The spectrum gating of existing infrared multispectral section of scenario simulation system and high frame frequency drive control function.This method are as follows: analogue system is on the scene
It is run under the unified clock of scape simulation computer, within one photoelectric integration period of detector, the triggering guidance of system unified clock
While detector opens photoelectric integration, trigger signal drive control spectrum gate and video modulator, successively timesharing are provided
Each spectral coverage scene is projected, the timesharing simulation process of infrared multispectral section of scene image is completed.The advantages of this method is
It is ingenious that guidance detector " persistence of vision " characteristic is utilized, based on the original that detector photoelectric respone and the time of integration are in a linear relationship
Multispectral section of complicated scenario simulation is divided into the single band scenario simulation in time domain, and is superimposed corresponding spectral information by reason, from
And simulation output is true to nature within guidance one photoelectric integration time cycle of detector, spectrum is distorted few infrared multispectral section of scene
Image.
It is a kind of infrared multispectral section of scenario simulation principle of device schematic diagram, the infrared multispectral section of scene mould as shown in Figure 1
Quasi- device, comprising: wideband light source 1, spectrum gate 2, video modulator 6, drive control computer 9, scenario simulation computer
10, camera lens 7, guidance detector 11 are collimated.
Wideband light source is made of blackbody radiation source, provides full spectral coverage infrared illumination；
Spectrum gate and video modulator use MEMS device 5 to be used as core component, and MEMS device is micro- by set of number
Reflection mirror array is constituted, and micro reflector array has certain area, which is spectrum gating/modulation areas, and illuminating bundle shines
It penetrates on the area, the switch of micromirror is controlled by PWM pulse modulation technology and switch persists duration, can realize spectrum respectively
Gating and image modulation function.
Wideband light source provides spectral region and covers 2~12 μm of infrared illumination, by Amici prism/grating 3 by different spectrums
The digital micro-mirror on piece that the illuminating bundle of section is projected in spectrum gate forms spectral illumination region and drives on the area to it
Dynamic model block inputs one group of 0/1 binary signal, and the switch of drive control different zones eyeglass can be under gated detector sensitivity spectral coverage
Illuminating bundle, thus complete spectrum gating control；After the illuminating bundle of spectrum gating passes through the even light of light uniforming device 8 again, warp
Reflecting mirror 4 reflects the digital micro-mirror on piece in image debugger, inputs a width gray level image (tonal gradation to its drive module
8bit), the modulation of each the pixel grey scale grade in scene image is completed by PWM modulation technology, generates the field for having spectral information
Scape image, then guidance detector is projected to by collimating camera lens.
It is a kind of infrared multispectral section of scenario simulation method control sequential figure as shown in Figure 2, scenario simulation system is when unified
It is run under clock, while opening guidance detector photoelectric integration, passes through drive control computer drives and control spectrum gate
And video modulator, generate single band scene image, and incuded after optical device by detector infrared focus plane, i.e., it is complete
At the scene image projection process of a wave band；Then, the scene projection process of the next wave band of drive control immediately, i.e., again
Spectrum gating and image modulation are carried out, is projected to detector by optical device；It is sensitive according to emulation demand and guidance detector
Spectral coverage divides, and the simulation of each spectral coverage scene image is sequentially completed within a photoelectric integration period of detector photosensitive area
Journey, and the projection duration of each spectral coverage scene is identical.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of infrared multispectral section of dynamic scene simulator characterized by comprising wideband light source (1), spectrum gate
(2), video modulator (6), collimation camera lens (7), guidance detector (11)；
The emergent ray of wideband light source (1) arrives successively by spectrum gate (2), video modulator (6), collimation camera lens (7)
Up to guidance detector (11)；
It include: drive control computer (9), scenario simulation computer (10)；
Under the scene that the clock and scenario simulation computer (10) of drive control computer (9) are set, using timesharing simulation side
Method realizes the simulation output of multispectral section of IR Scene.
2. infrared multispectral section of dynamic scene simulator according to claim 1, which is characterized in that spectrum gate (2),
Video modulator (6) includes MEMS device (5)；
Spectrum gate (2), video modulator (6) realize spectrum gating, space light modulation respectively；
Spectrum gate (2), video modulator (6) MEMS device (5) between link modulation, realize infrared multispectral section of scene mould
Quasi- drive control.
3. infrared multispectral section of dynamic scene simulator according to claim 2, which is characterized in that spectrum gate (2)
Including reflecting mirror (4), spectrum gate (2) includes Amici prism or grating (3)；The emergent ray of wideband light source (1), passes through
Amici prism or grating (3) successively give video modulator (6) by MEMS device (5), reflecting mirror (4) output.
4. infrared multispectral section of dynamic scene simulator according to claim 2, which is characterized in that video modulator (6)
Including reflecting mirror (4), light uniforming device (8)；
Light from spectrum gate (2) successively passes through light uniforming device (8), reflecting mirror (4), MEMS device (5) and projects.
5. infrared multispectral section of dynamic scene simulator according to claim 1, which is characterized in that transported under unified clock
Row passes through drive control computer (9) drive control spectrum gate while opening guidance detector (11) photoelectric integration
(2), video modulator (6) generate single band scene image, and by the infrared of guidance detector (11) after optical device
Focal plane induction, that is, complete the scene image projection process of a wave band；Then, the scene of the next wave band of drive control immediately
Projection process, that is, re-start spectrum gating and image modulation, is projected to guidance detector (11) by optical device；According to imitative
True demand and guidance detector sensitivity spectral coverage divide, within one photoelectric integration period of photosensitive area of guidance detector (11) successively
The simulation process of each spectral coverage scene image is completed, and the projection duration of each spectral coverage scene is identical.
6. infrared multispectral section of dynamic scene simulator according to claim 2, which is characterized in that MEMS device (5)
The form completion spectrum that the micromirror of different zones corresponds to the illuminating bundle of different spectral coverage is controllable, i.e., by a branch of complete infrared photograph of spectral coverage
Mingguang City after prism or grating beam splitting uniform irradiation in the micromirror of MEMS device different zones.
7. infrared multispectral section of dynamic scene simulator according to claim 1, which is characterized in that optical path information modulation is adopted
With the single channel process for successively carrying out spectrum, spectrum gating, image modulation, optical routing wideband light source is issued, through being divided rib
Mirror or grating, then through spectrum gate, using optical spectral modulator, projection process then is completed by optical device.
8. infrared multispectral section of dynamic scene simulator according to claim 1, which is characterized in that guidance detector
(11) IR Scene under sensitive spectral coverage carries out the simulation of open score section and is uniting within one photoelectric integration time cycle of detector
The scene image of each spectral coverage is successively simulated in timesharing under one clock control, and the projection duration of each spectral coverage scene is identical.
9. a kind of infrared multispectral section of dynamic scene analogy method, which is characterized in that using described in any one of any one of claims 1 to 88
Infrared multispectral section of dynamic scene simulator, execute the simulation of infrared multispectral section of dynamic scene.
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Inventor after: Yang Yang Inventor after: Li Qi Inventor after: Zhang Xiaowei Inventor after: Li Fan Inventor after: Feng Xiaochen Inventor after: Li Yanhong Inventor after: Zhao Haisheng Inventor before: Yang Yang Inventor before: Li Qi Inventor before: Zhang Xiaowei Inventor before: Li Fan Inventor before: Feng Xiaochen Inventor before: Li Yanhong Inventor before: Zhao Haisheng |