A dynamic polarization laser echo signal simulation system

Abstract

The invention relates to a dynamic polarized laser echo signal simulation system. The dynamic polarized laser echo signal simulation system comprises a laser depolarizer, a polarization generator, a dynamic simulator and a collimation projector. A dynamic polarized laser echo signal is generated particularly by the following steps of: 1, carrying out depolarization on biased laser excited by a simulation signal by the laser depolarizer and generating an unbiased laser light source; 2, enabling the unbiased laser light source to pass through the polarization generator, and according to relativeposition information of a target, illumination and laser semi-automatic guidance seeker, generating a required polarized laser light source; 3, enabling the polarized laser light source to pass through the dynamic simulator, simulating and regulating a spot size, introducing spot jittering and generating a dynamic polarized laser light source signal; and 4, enabling the dynamic polarized laser light source signal to pass through the collimation projector, and generating a dynamic polarized laser echo signal matched with a tested object optical system. By the system, a more real and reliable optical polarization scene can be established, and the demand on simulation of a target optical signal source is met.

Description

technical field [0001] The invention belongs to the field of laser echo signal simulation, in particular to a dynamic polarization laser echo signal simulation system. Background technique [0002] Through semi-physical simulation technology, the tested product is connected to the simulation loop, and by setting different laser echo signals as excitations, the response characteristics of the tested product under different excitations can be assessed. It is a commonly used testing method. Active guidance seekers or other laser detection equipment are often tested using this method. The existing laser echo signal simulation system cannot dynamically simulate the polarization echo characteristics of the laser, so it cannot detect the deformation of the light field distribution caused by polarization stress, etc., and cannot meet the requirements of the future polarized laser semi-active guidance seeker. Test requirements. Therefore, there is an urgent need for a laser echo si...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned problems of the existing laser echo signal simulation system, the present invention proposes a dynamic polarization laser echo signal simulation system. The characteristics of the invention can generate dynamic polarization laser echo signals, and the spot size is adjustable. Spot dithering to create a more realistic and usable optical polarization scene to meet the simulation requirements of the target optical signal source

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