Simulation Method and Simulator of Laser Imaging Radar Target Echo Signal

Abstract

The invention discloses a laser imaging radar target echo signal simulation method and a simulator, which belong to the field of photoelectric information technology. The laser pulse receiving device of the present invention converts synchronous laser pulses into synchronous signals and initial laser pulses; generates control instructions according to the target trajectory data, and generates a series of step delay signals with the same delay difference under the trigger of the synchronous signal, representing respectively A series of equal-delay surfaces; the laser pulse delay spatial reconstruction device spatially distributes the step-delay signals to their respective equal-delay planes to form a spatial two-dimensional delay signal array; the projection optical system The time signal is projected to the entrance pupil of the tested lidar receiving lens to realize the echo signal simulation. The invention can solve the problems in the existing 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, etc., and is mainly used in the semi-physical simulation of laser imaging radar guided weapons 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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