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首页> 美国政府科技报告 >Failure Detection and Isolation Analysis of a Redundant Strapdown Inertial Measurement Unit.
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Failure Detection and Isolation Analysis of a Redundant Strapdown Inertial Measurement Unit.

机译：冗余捷联惯性测量装置的故障检测与隔离分析。

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The objective of this study was to define and develop techniques for failure detection and isolation (FDI) algorithms for a dual fail/operational redundant strapdown inertial navigation system are defined and developed. The FDI techniques chosen include provisions for hard and soft failure detection in the context of flight control and navigation. Analyses were done to determine error detection and switching levels for the inertial navigation system, which is intended for a conventional takeoff or landing (CTOL) operating environment. In addition, investigations of false alarms and missed alarms were included for the FDI techniques developed, along with the analyses of filters to be used in conjunction with FDI processing. Two specific FDI algorithms were compared: the generalized likelihood test and the edge vector test. A deterministic digital computer simulation was used to compare and evaluate the algorithms and FDI systems.

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