星敏感器瞬态效应仿真及抗干扰算法

分析星敏感器在南大西洋异常区(south atlantic anomaly,SAA)工作异常的机理，建立空间粒子干扰仿真模型；并在此基础上，提出星点甄别和帧间比对两种抗空间粒子干扰算法.仿真结果表明，SAA环境下采用改进后的算法，星敏感器在捕获和跟踪模式下其识别成功率高、耗时少，空间辐射环境适用性较强.

Simulation of Transient Effect on Star Tracker and Anti Jamming Algorithms

In this paper, an analysis of abnormal work mechanism for star trackers while passing through the south atlantic anomaly (SAA) space zone is put forward. And, based on the correlated simulating model, two algorithms of resisting high energy particle radiation interference are both proposed, namely, real stars detection and alignment between frames. The simulation shows that for star trackers with improved algorithms, the computational cost time and the successful identification rate are greatly higher than those with normal algorithms in capture mode and in track mode, being competent with relatively severe space radiation environment.