| 冗余配置捷联惯导系统故障检测门限的确定 |
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| 引用本文： | 王社伟,张洪钺.冗余配置捷联惯导系统故障检测门限的确定[J].航空学报,2000,21(4):303-307. |
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| 作者姓名： | 王社伟 张洪钺 |
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| 作者单位： | 北京航空航天大学自动控制系,北京100083 |
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| 摘 要： | 以5个单敏感轴陀螺斜置式安装为例 ,讨论了当系统采用广义似然比方法进行故障检测时2个重门限值的设定 ,利用最小错误概率和系统最大可靠性2种指标对门限值进行了优化 ,并对这2种方法的适用范围和优化结果进行了讨论。
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| 关 键 词： | 惯导系统 冗余配置 广义似然比检测 故障检测门限 可靠性 |
| 收稿时间： | 1999-04-15; |
| 修稿时间： | 1999-04-15 |
FAULT DETECTION THRESHOLD DETERMINATION IN A REDUNDANT STRAPDOWN INERTIAL NAVIGATION SYSTEM |
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| WANG She wei,ZHANG Hong yue.FAULT DETECTION THRESHOLD DETERMINATION IN A REDUNDANT STRAPDOWN INERTIAL NAVIGATION SYSTEM[J].Acta Aeronautica et Astronautica Sinica,2000,21(4):303-307. |
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| Authors: | WANG She wei ZHANG Hong yue |
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| Institution: | Dept. of Automatic Control, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | A method to determine the threshold that based on the generalized likelihood ratio test (GLR) in fault detection of the redundancy strapdown navigation system is described. The impact of the threshold on mission reliability of the fault tolerant navigation system is very important. The application of this approach to two thresholds determination is illustrated for a pentad instrument set of gyros, and to optimization of two thresholds based two methods-minimizing the probability of vehicle loss and minimizing the error probability of FDI. Two methods are compared in the last part of this paper. |
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| Keywords: | inertial navigation system threshold determination redundancy GLT test reliability |
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