A Non-imaging Spaceborne Laser Warning System

Abstract

The invention provides a non-imaging type satellite-borne laser warning system comprising a spectral analysis system and a positioning system. The spectral analysis system consists of a moving reflector, an attenuation sheet, a light splitter, a first spectrograph, a second spectrograph and a motor. The motor is connected with the moving reflector; the attenuation sheet is arranged between the moving reflector and the light splitter; the motor controls and rotates the moving reflector to adjust the angle of incidence of target laser so that the target laser penetrates the attenuation sheet and is split into two paths of laser; one path penetrates a lens to enter the first spectrograph and the other path penetrates a lens to enter the second spectrograph; the first spectrograph and the second spectrograph analyze the spectral range of the target laser. The system can detect to-be-tested laser on the ground and provide accurate spectral information and laser source orientation of to-be-tested laser, thereby achieving warning of to-be-tested laser.

Description

technical field [0001] The invention belongs to the field of laser warning, in particular to a non-imaging spaceborne laser warning system. Background technique [0002] Nowadays, the imaging spaceborne laser warning system is mainly CCD imaging type, and the orientation of the target laser is determined by imaging the position of the CCD target surface. Although the technology of CCD imaging alarm system is mature, there are still many disadvantages and deficiencies. For example, CCD outputs in scanning mode, the frame frequency is not high, and the response speed is slow. For the alarm system, the system response time is particularly important. Determine the success or failure of the entire system, the CCD output image has relatively high power consumption and requirements for subsequent processing circuits. The size and response time of the CCD pixels are inconsistent, which will affect the measurement accuracy of the light spot, and then affect the positioning accuracy....

AI Technical Summary

Problems solved by technology

Although the technology of CCD imaging alarm system is mature, there are still many disadvantages and deficiencies. For example, CCD outputs in scanning mode, the frame frequency is not high, and the response speed is slow. For the alarm system, the system response time is particularly important. Determine the success or failure of the whole system, the CCD output image has relatively high power consumption and requirements for subsequent processing circuits

The size and response time of the CCD pixels are inconsistent, which will affect the measurement accuracy of the spot, and then affect the positioning accuracy

Different spectral ranges require different CCD image sensors. To detect threatening lasers from visible light to far infrared, a combination of multiple CCDs is required, which not only complicates the optical system and peripheral drive circuits, but also causes the entire The power consumption and cost of the system are greatly increased, the volume is large, heavy, the false alarm rate is high, and the detection spectrum range is narrow

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