Five-band target radiation portable laser simulation device and method

Abstract

The invention discloses a five-waveband target radiation portable laser simulation device and method, and belongs to the technical field of photoelectric testing. A tail flame radiation source of the simulation device comprises an ultraviolet radiation source, a first infrared radiation source and a second infrared radiation source. A distance measurement radiation source comprises a first distance measurement infrared radiation source and a second distance measurement infrared radiation source. Optical radiation is emitted by the semiconductor laser; the optical axes of the collimation units in the tail flame radiation source and the distance measurement radiation source are parallel to the optical axis of the imaging system in the tracking module. According to the simulation method, the main control module sends type information of a measured combat aircraft set by a user and pulse frequency parameters of distance measurement radiation required to be simulated by the user to the tracking module and the distance measurement radiation source respectively, and sends working temperature parameters and driving current parameters of the semiconductor laser to the tail flame radiation source and the distance measurement radiation source; the tracking module tracks the measured combat aircraft; the tail flame radiation source and the distance measurement radiation source emit tail flame radiation and distance measurement radiation in the direction parallel to the imaging light path of the tracking module respectively.

Description

technical field [0001] The invention relates to a five-band target radiation portable laser simulation device and method, belonging to the technical field of photoelectric testing. Background technique [0002] Missiles as precision-guided weapons pose a serious threat to combat aircraft (fighters, early warning aircraft, bombers, large unmanned aerial vehicles, and helicopters, etc.). In order to improve the survivability of combat aircraft in modern warfare and try to avoid missile attacks, various existing All kinds of combat aircraft are equipped with an onboard missile approach warning system, which can determine whether there is an incoming missile by detecting the radiation of the exhaust flame flow field of the enemy missile and the radiation of the ranging laser. In order to determine the reliability of the airborne missile approach warning system, it needs to be tested. If the live ammunition test is adopted, the cost is high, the cycle is long, and it is impossibl...

AI Technical Summary

Problems solved by technology

However, there are some technical problems in the scheme: 1. The radiation source is a thermal radiation source with full-spectrum radiation, but only three specific wavebands (one ultraviolet, two mid-infrared) are used for radiation simulation, The radiant energy utilized only accounts for a few percent to a few thousandths of the full spectrum, and more than 90% of the radiant energy is wasted; 2. The thermal radiation source has a large volume, and it is difficult to use a common optical system to dissipate it. The radiation angle is compressed into a smaller range, so that it is equivalent to a point source. As far as the three bands are concerned, further radiation energy is wasted due to radiation dispersion; 3. Simulate missiles by controlling the opening and closing of the shutters The radiation time characteristics when the engine is ignited, because the shutters are opened and closed mechanically, the rate is usually on the order of milliseconds, coupled with the strong diffraction characteristics in the mid-infrared band, the simulation time resolution of this method is low; 4. The simulation system is very cumbersome, and it is very inconvenient to move and arrange. Therefore, in order to change the terrain, it will be very difficult to operate in practice; The distance laser is a relatively strong light beam actively launched by the incoming missile to the combat aircraft, and its own exposure is obvious

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