Research on standard starlight simulator with adjustable background

This study proposes a standard starlight simulator with an adjustable background to improve the accuracy of ground- based tests of star sensors and space cameras. The simulator can simulate complex space light radiation environments in the simulation range of Φ300mm aperture, 0.5° field of view, and -2Mv to +6.0Mv magnitude. By optimizing the optical system design and structural design, the simulation of star points with high imaging quality and the precise control of background light irradiation uniformity has been achieved, thus ensuring the design accuracy of the equipment at the development stage.