| 综合导航系统中的多级故障检测与隔离技术研究 |
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| 引用本文： | 刘宗玉,陈明,王玮.综合导航系统中的多级故障检测与隔离技术研究[J].中国空间科学技术,2005,25(1):48-52. |
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| 作者姓名： | 刘宗玉 陈明 王玮 |
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| 作者单位： | 西北工业大学自动化学院,西安,710072 |
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| 基金项目： | 陆航预研项目(412030103) |
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| 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。
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| 关 键 词： | 导航系统 故障检测 接合 综合故障 量测 检测算法 子系统 隔离技术 相关性检测 BIT |
The Study on Multi-Stage Fault Detection and Isolation in Integrated Navigation System |
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| Liu Zongyu,Chen Ming,Wang Wei.The Study on Multi-Stage Fault Detection and Isolation in Integrated Navigation System[J].Chinese Space Science and Technology,2005,25(1):48-52. |
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| Authors: | Liu Zongyu Chen Ming Wang Wei |
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| 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. |
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| Keywords: | Navigation system Fault detection Kalman filtering Spacecraft |
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