CN103884357A - Large-view-field dual-waveband dynamic target and interference source simulation device - Google Patents
Large-view-field dual-waveband dynamic target and interference source simulation device Download PDFInfo
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- CN103884357A CN103884357A CN201410119379.8A CN201410119379A CN103884357A CN 103884357 A CN103884357 A CN 103884357A CN 201410119379 A CN201410119379 A CN 201410119379A CN 103884357 A CN103884357 A CN 103884357A
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- 238000012360 testing method Methods 0.000 description 13
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
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Abstract
The invention relates to a large-view-field dual-waveband dynamic target and interference source simulation device, which comprises a uniform light source, a dynamic target generator, a control unit and an off-axis three-mirror optical system, wherein the uniform light source is used for generating a uniform light source; the uniform light source comprises a first reflective spotlight and a second reflective spotlight; the dynamic target generator comprises a first DMD and a second DMD; the first DMD and the second DMD are respectively connected with the control unit; the first DMD and the off-axis three-mirror optical system are sequentially arranged on an emergent light path of the first reflective spotlight; the second DMD and the off-axis three-mirror optical system are sequentially arranged on an emergent light path of the second reflective spotlight. The large-view-field two-waveband dynamic target and interference source simulation device provided by the invention can effectively complete the simulation of high-precision and dynamic targets and interference sources in a laboratory.
Description
Technical field
The invention belongs to optical field, relate to a kind of large visual field two waveband dynamic object and interference source analogue means, relate in particular to a kind of large visual field two waveband dynamic object and interference source analogue means that is mainly used in laboratory target scene simulation.
Background technology
Large visual field, two waveband dynamic object and the interference source analogue means of research is at present the gordian technique that product and early warning camera are guided in checking in laboratory.Dynamic object and interference source analogue means are the chief components of space environment simulation test in Aeronautics and Astronautics technology, for testing guiding product and the target acquistion performance of early warning camera and the image processing algorithm of data processing software.
All types of target simulation and the interference source device of past development, be to be mainly modeled as master with static object, cannot realize target and the image information of interference source and the real Time Dynamic Simulation of spectral information; And general dynamic object analogue means, target optical spectrum narrow range, the scene simulated are single, and the image resolution ratio of simulator is low, visual field is little, can not meet large visual field in wartime now, multispectral section, the needs of multiple target tracking, guiding, early warning system test.Multispectral section of target guiding in the past, the checking of early warning system Tracking Recognition ability can only be at field testing, therefore, carry out high precision, high resolving power, large visual field, two waveband dynamic object and interference source analogue means as research topic, there is higher practical value.
Summary of the invention
For solve in background technology, exist great Tian district, dynamically, high precision, multispectral section of target and the interference source technical barrier of simulating, the invention provides a kind of large visual field two waveband dynamic object and interference source analogue means of the simulation that can effectively complete high precision, dynamic object and interference source in laboratory.
Technical solution of the present invention is: the invention provides a kind of large visual field two waveband dynamic object and interference source analogue means, its special character is: described large visual field two waveband dynamic object and interference source analogue means comprise uniform source of light, dynamic target generator, control module and from axle three reflecting optical systems; Described uniform source of light comprises the first reflector spotlight and the second reflector spotlight; Described dynamic target generator comprises a DMD and the 2nd DMD; A described DMD and the 2nd DMD are connected with control module respectively; A described DMD and being successively set on the emitting light path of the first reflector spotlight from axle three reflecting optical systems; Described the 2nd DMD and being successively set on the emitting light path of the second reflector spotlight from axle three reflecting optical systems.
Above-mentionedly comprise primary mirror, secondary mirror, three mirrors and semi-transparent semi-reflecting lens from axle three reflecting optical systems; A described DMD, semi-transparent semi-reflecting lens, three mirrors, secondary mirror and primary mirror are successively set on the emitting light path of the first reflector spotlight; Described the 2nd DMD, semi-transparent semi-reflecting lens, three mirrors, secondary mirror and primary mirror are successively set on the emitting light path of the second reflector spotlight.
Above-mentioned semi-transparent semi-reflecting lens is germanite glass semi-transparent semi-reflecting lens.
Advantage of the present invention is:
The present invention mainly conducts a research around two waveband dynamic object and interference source analogue technique, has completed the design of a kind of two waveband dynamic object and interference source analogue means; This device has solved high precision, large visual field, dynamic object and has simulated a difficult problem with interference source, for quality examination, performance test and the production of Target Tracking System on satellite and guided missile significant.Two waveband dynamic object involved in the present invention and the analogue means of interference source scene are mainly used in laboratory target scene simulation, can simulate the target information of different spectrum scenes simultaneously, and the characteristics of luminescence of effective simulated target and interference source, for guiding the performance test of product and early warning camera.
Particularly, the present invention has the following advantages:
1, the present invention can real time modelling different target and the situation of change of scenery, has advantages of in real time, dynamic similation;
2, the present invention utilizes optics field stitching technology, two DMD devices are carried out to image space splicing, broken through the little defect of dynamic scenery simulator simulation field range in the past, maximum analog visual field can extend to 5 ° of left and right (the dynamic goal simulator visual field of same size only had 2.5 ° in the past);
3, the present invention according to actual needs, has designed a kind of trans optical texture of field off-axis three of looking greatly, and its image quality approaches diffraction limit, and distortion is less than 0.05%, and center of energy and chief ray position deviation are less than 8 ", optical system collimation precision is better than 10 "; Can be used for target simulation and the emulation of different-waveband simultaneously, solved dynamic goal simulator in the past and cannot realize a difficult problem for two waveband target simulator;
4, the present invention adopt from axle three transconfigurations can real time modelling ultraviolet light, the image information of visible ray, infrared band, effectively the feature of different target is carried out to emulation;
5, the present invention adopts two DMD devices to carry out target simulator, can guarantee the consistance of the optical axis of different target image emergent light;
6, the present invention adopts germanite glass as semi-transparent semi-reflecting lens, transmitted infrared light ripple simultaneously, and reflect visible light or ultraviolet light, for the real-time simulation simulation of different spectral coverage target provides technical support (device in the past adopts catoptron switching mechanism to simulate the emulation of different target spectrum).
Accompanying drawing explanation
Fig. 1 is the structural representation of large visual field two waveband dynamic object provided by the present invention and interference source analogue means;
Wherein:
1-uniform source of light; 2-dynamic target generator; 3-control module; 4-is from axle three reflecting optical systems; 5-test product; 11-the first reflector spotlight; 12-the second reflector spotlight; 21-the one DMD; 22-the 2nd DMD; 41-primary mirror; 42-secondary mirror; 43-tri-mirrors; 44-semi-transparent semi-reflecting lens.
Embodiment
The present invention, in conjunction with the structural requirement of tested guiding product and early warning camera, based on from the anti-optical texture of axle three, has proposed a kind of dynamic two waveband target simulator, can effectively in laboratory, complete the simulation of high precision, dynamic object and interference source.This two waveband dynamic object and interference source analogue means utilize two DMD devices, can implementation space target and the simulation of background, wherein a DMD21 can simulate infrared signature wave band 1, the 2nd DMD22 can simulate infrared signature wave band 2, by realizing the synthetic of Bi-objective, the real-time simulation that produces two kinds of wavelength, multiple scenery in the same visual field of test product 5 after half-reflecting half mirror 44.Large visual field, two waveband dynamic object and interference source analogue means design concept are as shown in Figure 1.DMD, Digital Micro mirror Device, digital micromirror elements.
As shown in Figure 1, in the time of guiding product and the test of early warning camera, its system optical axis is adjusted to parallel with dynamic object with interference source analogue means optical axis, by scenery and the target image of two-way light source and target generator simulation, can in test product 5 visual fields, in image planes, become two kinds of spectral information images, now can be used for the real-time simulation of target source and interference source, thereby can verify the Target Recognition Algorithms of test product 5.
Large visual field two waveband dynamic object provided by the present invention and interference source analogue means mainly comprise: uniform source of light 1(the first reflector spotlight 11 and the second reflector spotlight 12), dynamic target generator 2(the one DMD21 and the 2nd DMD22), control module 3, from axle three reflecting optical system 4(primary mirrors 41; Secondary mirror 42; Three mirrors 43; Semi-transparent semi-reflecting lens 44) composition.
Wherein: a DMD21 and the 2nd DMD22 are connected with control module respectively; The one DMD21 and being successively set on the emitting light path of the first reflector spotlight 11 from axle three reflecting optical systems; The 2nd DMD22 and being successively set on the emitting light path of the second reflector spotlight 12 from axle three reflecting optical systems.Control module mainly completes the driving control of DMD device, and completes the generation of image object.
Comprise primary mirror 41, secondary mirror 42, three mirrors 43 and semi-transparent semi-reflecting lens 44 from axle three reflecting optical systems; The one DMD21, semi-transparent semi-reflecting lens 44, three mirrors 43, secondary mirror 42 and primary mirror 41 are successively set on the emitting light path of the first reflector spotlight 11; The 2nd DMD22, semi-transparent semi-reflecting lens 44, three mirrors 43, secondary mirror 42 and primary mirror 41 are successively set on the emitting light path of the second reflector spotlight 12.
Principle of work of the present invention is: adopt uniform source of light 1 illuminate respectively dynamic target generator 2(wherein the first reflector spotlight 11 and the second reflector spotlight 12 by the infrared light generation radiation luminous energy of two kinds of characteristic wave bands), the one DMD21 and the 2nd DMD22, after the irradiation of uniform source of light 1, can distinguish the radiant light of two kinds of infrared bands of reflection modulation; Generate software to two dynamic target generators 2 driver output characteristic image information respectively by the image in control module 3; Now a DMD21 and the 2nd DMD22 lay respectively at from the position of focal plane of axle three anti-systems, the one DMD21 sees through semi-transparent semi-reflecting lens 44 through forming the target emanation from infinite point from the anti-system of axle three, the 2nd DMD22 by semi-transparent semi-reflecting lens 44 reflections after through also forming the target emanation from infinite point from the anti-system of axle three; Wherein semi-transparent semi-reflecting lens 44 adopts germanite glass to make, and can guarantee all band analog simulation of infrared band 2 μ m～17 μ m; Now, from looking facing to system optical axis direction from the anti-system outlet of axle three, as the two waveband from infinite point, multiple goal radiation, can realize two waveband target and interference source simulation.Wherein, carry out simulated target information by a DMD21, simulate interference source information by the 2nd DMD22, now can realize target source and the object simulated in synchronization, Same Scene of interference source; Test product 5 is placed on to this device exit, adjust its optical axis consistent with dynamic object and interference source analogue means optical axis, can in test product 5 image planes, become the target image of two kinds of spectral informations, effectively experiment lab simulation target and interference source information, for the test of test product 5 provides strong condition guarantee.In addition, the image in control module 3 generates software and can refresh in real time target simulation information, and its refreshing frequency is better than 80Hz, effectively the real Time Dynamic Simulation of simulated target.Wherein the function of each several part is introduced as follows:
Uniform source of light 1 is mainly for providing simulated target transmitter luminous luminous energy, and the first reflector spotlight 11 and the second reflector spotlight 12 are respectively the uniform source of light 1 of two kinds of wave bands, can effectively simulate the characteristics of luminescence of different target.Dynamic target generator 2(the one DMD21 and the 2nd DMD22) for the emulation of target signature is provided, overturn to realize the conversion of different target and background by the micro mirror of driver control DMD inside, thus realize the simulation of dynamic object; In addition, adopting the effect of two DMD is optics splicing in order to realize large visual field optical system image planes and the dynamic simulation of different spectrum targets.Be mainly target and the background radiation in order to simulate infinite point from axle three reflecting optical systems 4, adopt thisly can make optical target emulation full spectral simulation from ultraviolet to LONG WAVE INFRARED from the trans optical texture of axle three; In addition, the apparent field of optical system also can increase to more than 5 °, has guaranteed the large visual field simulation of image object; This system imaging quality approaches diffraction limit, and distortion is less than 0.05%, and center of energy and chief ray position deviation are less than 8 ".
Claims (3)
1. large visual field two waveband dynamic object and an interference source analogue means, is characterized in that: described large visual field two waveband dynamic object and interference source analogue means comprise uniform source of light, dynamic target generator, control module and from axle three reflecting optical systems; Described uniform source of light comprises the first reflector spotlight and the second reflector spotlight; Described dynamic target generator comprises a DMD and the 2nd DMD; A described DMD and the 2nd DMD are connected with control module respectively; A described DMD and being successively set on the emitting light path of the first reflector spotlight from axle three reflecting optical systems; Described the 2nd DMD and being successively set on the emitting light path of the second reflector spotlight from axle three reflecting optical systems.
2. large visual field two waveband dynamic object according to claim 1 and interference source analogue means, is characterized in that: describedly comprise primary mirror, secondary mirror, three mirrors and semi-transparent semi-reflecting lens from axle three reflecting optical systems; A described DMD, semi-transparent semi-reflecting lens, three mirrors, secondary mirror and primary mirror are successively set on the emitting light path of the first reflector spotlight; Described the 2nd DMD, semi-transparent semi-reflecting lens, three mirrors, secondary mirror and primary mirror are successively set on the emitting light path of the second reflector spotlight.
3. large visual field two waveband dynamic object according to claim 2 and interference source analogue means, is characterized in that: described semi-transparent semi-reflecting lens is germanite glass semi-transparent semi-reflecting lens.
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Cited By (3)
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| CN113452436A (en) * | 2021-06-07 | 2021-09-28 | 中国科学院上海光学精密机械研究所 | Dynamic target and interference simulation device for space laser link capture and tracking |
| CN114034207A (en) * | 2021-10-25 | 2022-02-11 | 湖北航天技术研究院总体设计所 | Composite axis tracking aiming performance testing device and testing method thereof |
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| CN114034207A (en) * | 2021-10-25 | 2022-02-11 | 湖北航天技术研究院总体设计所 | Composite axis tracking aiming performance testing device and testing method thereof |
| CN114034207B (en) * | 2021-10-25 | 2023-03-14 | 湖北航天技术研究院总体设计所 | Composite axis tracking aiming performance testing device and testing method thereof |
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