Laser detecting device for concealed flying object

Abstract

The device comprises: a laser, a first / second spectroscope, a polarization beam-splitter piece, a 1 / 4 wave plate, a telescope, a full-reflection mirror on reflection beam of the first spectroscope, a switch, and an optical Doppler imaging detector on the output light direction of second spectroscope. Wherein, arranging the first spectroscope and beam-splitter piece both as 45Deg, 1 / 4 wave plate and telescope on the OA of output beam of the laser in turn; arranging with 45Deg the second spectroscope on the cross point of switch light path and reflection light path of laser echo of beam-slitter piece. This invention can determine the position, height, velocity and direction.

Description

technical field [0001] The invention relates to a stealth flying target, in particular to a laser detection device for a stealth flying target using high-resolution laser Doppler imaging technology to obtain speed, height and direction information of the stealth flying target. Background technique [0002] The monitoring and detection of stealth flying objects plays an important role in the fields of experimentation and security. At present, the invisible wave-absorbing coatings and structures used by stealth flying targets are mainly aimed at centimeter waves, but have limited ability to infrared and visible light, especially the near-ultraviolet stealth technology is more difficult. Therefore, the use of microwave radar to detect stealth flying targets has limited detection capabilities, low range resolution, and poor resistance to electronic interference. [0003] The detection technology based on high-resolution laser Doppler imaging can scan the atmosphere in real time...

AI Technical Summary

Problems solved by technology

Therefore, the use of microwave radar to detect invisible flying targets has limited detection capabilities, low range resolution, and poor resistance to electronic interference.

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