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Chi-square and SPRT combined fault detection for multisensor navigation

机译:卡方和SPRT组合故障检测用于多传感器导航

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摘要

A fault-detection algorithm for a redundant multisensor navigation system for hypersonic cruise vehicles (HCVs) is proposed. The algorithm comprehensively diagnoses failures according to the failure level monitored by the sequential probability ratio test (SPRT) and chi-square test as well as the failure trend monitored by the SPRT. A test statistics feedback-reset loop is also added to shorten the recovery time after failure ceases. Simulations indicate improvements in both failure detection and recovery speed, contributing to improved accuracy and stability in HCV fault-tolerant navigation.
机译:提出了一种用于超音速巡航舰(HCV)的冗余多传感器导航系统的故障检测算法。该算法根据顺序概率比检验(SPRT)和卡方检验所监视的故障级别以及SPRT所监视的故障趋势来全面诊断故障。还添加了测试统计信息反馈-重置循环,以缩短故障停止后的恢复时间。仿真表明故障检测和恢复速度均得到改善,从而有助于提高HCV容错导航的准确性和稳定性。

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