论文部分内容阅读
星敏感器是航天器高精度姿态测量的重要部件,随着航天器结构的日益复杂,为了保证星敏感器正常工作条件,在航天器设计初期就需要考虑其视景有效性。如何对在轨运行时的星敏感器视景有效性进行分析成为亟待解决的问题。传统的试验测试对在轨星敏感器视景分析往往达不到实际要求。为此构建虚拟仿真平台,通过仿真航天器、星体等构建一个在轨运行环境,进而利用光线跟踪方法进行星敏感器视场光照分析、碰撞检测方法进行星敏感器视场遮挡分析。展示的仿真结果表明光线跟踪方法和碰撞检测方法运用的合理性和有效性。
The star sensor is an important part of high-precision attitude measurement of spacecraft. As the structure of the spacecraft becomes more and more complex, in order to ensure the normal working conditions of the star sensor, the validity of the scene needs to be considered in the initial design of the spacecraft. How to analyze the effectiveness of the star sensor in on-orbit operation becomes an urgent problem to be solved. Traditional test tests often fail to meet the actual requirements of sight-sensor analysis on orbit satellite. For this purpose, a virtual simulation platform is constructed to simulate spacecraft, astral and so on to build an on-orbit operating environment, and then uses the ray tracing method to conduct the star-sensor field illumination analysis. The collision detection method uses the star-sensor field of view to block the analysis. The simulation results show the rationality and effectiveness of the ray tracing method and the collision detection method.