导星辅助运动暗弱天体检测系统设计与仿真

The detection of faint moving objects in space is widely used in aerospace and military fields. In order to improve the detection capability of the space object monitoring system, a guide star assisted detection system for moving faint objects is proposed and designed. The system consists of star map simulation, image denoising, centroid calculation, motion backpropagation and main focal plane imaging. Firstly, the star catalog and the starry sky environment are studied to ensure the accuracy of the star point position and noise simulation. Secondly, to realistically simulate the starry sky environment where the telescope is located, jitter errors, noise errors, and motion prior errors are introduced. At the same time, a guide star assisted method is designed to eliminate the above errors, and the system is adjusted through the motion back-transmission module. Experiments prove that the designed system can not only simulate the real star map, but also slow down the error influence of the star environment on the telescope.