中国空间科学技术

中国空间科学技术

• •    

综合导航系统中的多级故障检测与隔离技术研究

刘宗玉,陈明,王玮   

  1. 西北工业大学自动化学院,西北工业大学自动化学院,西北工业大学自动化学院 西安710072 ,西安710072 ,西安710072
  • 发布日期:2005-02-25

The Study on Multi-Stage Fault Detection and Isolation in Integrated Navigation System

Liu Zongyu Chen Ming Wang Wei (Automation School of Northwestern Polytechnical University, Xi'an 710072)   

  • Online:2005-02-25
  • Supported by:
    陆航预研项目(412030103)

被引次数

12

摘要： 文章讨论了综合导航系统中的故障检测与隔离问题, 提出了子系统机内自检测(BIT)、直接合理性检测、子系统输出相关性检测、卡尔曼滤波量测检测和间接合理性检测的五级综合故障检测算法。此算法简捷有效, 计算量小, 已成功地应用到了综合导航系统中, 有效提高了综合导航系统的可靠性。

关键词: 　导航系统, 故障检测, 卡尔曼滤波, 航天器

Abstract: In this paper, fault detection and isolation in the integarted navigation system are discussed. And the 5 stage fault detection algorithm, in cluding built in test (BIT), rationality test for outputs of sub systems, correlation test among outputs of sub systems, test for residuals in Kalman filter and rationality test for estimation of error obtained by Kalman filter, is proposed. This algorithm is effective and can be easily implemented with low computation cost. It has been applied to integrated navigation system and increases its reliability remarkably.