摘要
高可靠性是航天测量船组合导航系统的基本要求。文中分析了残差χ2检验法和状态χ2检验法的优缺点,提出一种改进型状态递推算法和残差χ2检验法的组合算法。仿真结果表明,该方法提高了故障检测灵敏度,进而提高了系统的安全性和可靠性。
It is fundamental for the space TT&C(Tracking,Telemetry and Controlling) ship's integrated navigation system to possess high reliability.This paper analyzes the advantage and disadvantage of two chi-square detecting methods to some failures.An improved fault detecting system is presented by combining the residual chi-square and improved chi-square detections.The simulation result shows that the new method is very efficient and practical,and that the reliability and safety of the system can be improved.
出处
《遥测遥控》
2007年第S1期218-222,共5页
Journal of Telemetry,Tracking and Command
关键词
组合导航系统
故障检测法
χ2检验法
残差χ2检验法
Integrated navigation system
Fault detecting method
Chi-square detection
Residual chi-square detection
