Laser imaging radar target echo signal simulation method and simulator

Abstract

The invention discloses a laser imaging radar target echo signal simulation method and a simulator, and belongs to the technical field of photoelectric information. A laser pulse reception apparatus converts a synchronous laser to a synchronous signal and an initial laser pulse; a control instruction is generated according to target track data, and a series of stepping time-delay signals with thesame delay difference are generated triggered by the synchronous signal to represent a series of equal time-delay planes; a laser pulse time-delay space reconstruction apparatus distributes the stepping time-delay signals to respective equal time-delay planes in space to form a spatial two-dimensional time-delay signal array; and a projection optical system projects the two-dimensional time-delaysignal to an entrance pupil position of a tested laser radar reception lens to realize echo signal simulation. According to the method and the simulator, problems of failure of generalization of different operating wavelengths, small quantity of optical echo channels, poor distance resolution, and indefinite time-delay etc. in the conventional target echo signal simulation technical scheme can besolved, and the method and the simulator are mainly applied to a laser imaging radar guidance weapon hardware-in-the-loop simulation system.

Description

technical field [0001] The invention relates to a laser imaging radar target echo signal simulation method and a simulator, which are mainly used in a semi-physical simulation system of laser imaging radar guidance weapons, and belong to the field of photoelectric information technology. Background technique [0002] The emergence and application of laser technology has promoted the development of laser imaging radar technology. Since the first ruby ​​laser came out in 1960, researchers have proposed the idea of ​​laser radar. Over the past half a century, laser radar technology has developed from a simple laser ranging system to a laser tracking, laser speed measurement, laser imaging, etc. function of complex lidar systems. According to the acquisition method of target information, direct detection lidar can be divided into single-point ranging lidar, line array imaging lidar and area array imaging lidar. It is widely used in military, civilian, remote sensing and other ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a laser imaging system to solve the problems in the existing laser imaging radar target echo signal simulation technical scheme that different working wavelengths cannot be used universally, the number of optical echo channels is small, the distance resolution is poor, and there is an uncertain delay. Radar Target Echo Signal Simulation Method and Simulator

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