A Large Field of View and High Resolution Star Simulator

Abstract

The invention discloses a high-resolution star simulator with a large field of view, which includes an optical collimation module, a light shield, a light splitting module, an imaging component, an illumination module, a connection mechanism and a control system. The optical collimation module is placed on a star The front end of the simulator is used to provide star map projection for the star simulator; the light shield is installed on the optical collimation module to provide a dark environment for the test environment to avoid external stray light from affecting the use of the system; the light splitting module is placed At the rear end of the optical collimation module, it is mainly used for star map turning and illumination of the imaging component; the imaging component is placed on the upper end of the light splitting module, and its simulated star map is turned to the optical collimation module through the light splitting system; the lighting module The imaging component is illuminated by the light splitting module; the control system controls the brightness of the lighting module and the replacement of the star map of the imaging component in real time. The invention can test the star sensor with large field of view and high resolution, and can also be used for the star sensor of the previous version, and has high versatility and simplicity.

Description

technical field [0001] The invention relates to the field of optical testing, in particular to a star simulator with a large field of view and high resolution. Background technique [0002] With the continuous development of modern science and technology, the accuracy and efficiency of satellite on-orbit attitude adjustment are getting higher and higher, which requires the resolution and field of view of star-sensitive navigation equipment to be larger and larger, so the star simulator index needs to be improved to meet Star sensor test required. [0003] At present, the maximum field of view of the star simulator is basically about 40°. If the star sensor with a larger field of view is tested, it needs to be realized with the help of a turntable, which not only introduces the error of the turntable, but also has a cumbersome process, which loses the advantages that the star simulator should have. sex. Coupled with the low resolution of the current star simulator, it is di...

AI Technical Summary

Problems solved by technology

[0003] At present, the maximum field of view of the star simulator is basically about 40°. If the star sensor with a larger field of view is tested, it needs to be realized with the help of a turntable, which not only introduces the error of the turntable, but also has a cumbersome process, which loses the advantages that the star simulator should have. sex

Coupled with the low resolution of the current star simulator, it is difficult to evaluate the real pixel resolution of the star sensor

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