基于星敏感器的天文/惯导组合导航仿真研究

本文通过仿真实验，研究了基于星敏感器的天文／惯导组合导航系统的导航性能和特点。首先分析了天文导航的基本原理，并给出了天文／惯导组合导航算法的理论模型。在此基础上，建立了天文导航和捷联惯性导航的仿真模型，实现了天文／惯导组合导航系统仿真。仿真结果表明：基于星敏感器的天文／惯导组合导航能够有效抑制惯导的长时漂移累积误差，有利于实现机载远程长航时的高精度导航。

Research on CNS/SINS Integrated Navigation by Simulation

According to the simulation experiments, the performance and characteristic of CNS/INS integrated navigation are analyzed in this paper. Firstly, the basic theory of celestial navigation is discussed, and the algorithm of CNS/1NS integrated navigation is presented. Then, the celestial navigation and inertial navigation simulation models are set up. What＇s more, the CNS/INS integrated navigation simulation system is realized. The simulation results show that the accumulative errors of inertial navigation are checked effectively by the CNS/INS integrated navigation, which is benefit to realize the high precision airborne navigation with long-distance and long-endurance.