Complex background simulation device

Abstract

The invention discloses a complex background simulation device. The device comprises an illumination system, a background film and a collimating system. A pattern on the background film is an actually shot background pattern. The illumination system comprises a point light source, a collimating lens, a compound eye array and a first convergent mirror. Light emitted by the point light source is straightened by the collimating lens and then enters the compound eye array, the compound eye array homogenizes the collimated light and then the light is converged to the background film through the first convergent mirror, and the light emitted from the background film is collimated by the collimating system and then generates a simulated complex background. According to the complex background simulation device, the pattern on the background pattern is the actually shot background pattern, more complex and more real backgrounds can be simulated and generated, and when the device is used for target tracking testing, testing precision can be improved.

Description

technical field [0001] The invention relates to the technical field of target characteristic detection, in particular to a complex background simulation device. Background technique [0002] The photoelectric theodolite is a large-scale high-precision optical measurement device that uses optical systems and electronic technology to identify, track and obtain target movement information (such as azimuth, pitch angle, flight trajectory, etc.) for moving targets in the air. It has a wide range of applications in scientific research and other fields Applications. In order to evaluate the performance of the photoelectric theodolite tracking target (including tracking angular velocity, tracking angular acceleration and tracking accuracy, etc.), the target is generally used to simulate the moving target for the photoelectric theodolite to track, and the situation of the photoelectric theodolite tracking the simulated target is finally equivalent to the photoelectric theodolite trac...

AI Technical Summary

Problems solved by technology

But this state is often inconsistent with the actual working state in the field, because when the photoelectric theodolite is tracking the air target, it is working under all-weather conditions, and the working background at this time cannot be completely clean (that is, it is sunny without Clouds), and often encounter various weather (such as cloudy, overcast, rain, etc.), under such conditions, the contrast between the target and the background is reduced, and the background light intensity will even be higher than the target, so the traditional moving target simulation is used The target simulated by the system is used to test the tracking performance of the photoelectric theodolite, and the test accuracy is not high

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