飞机着陆时的容错导航

 研究了飞机在微波着陆环境中的传感器容错系统。该系统的主要目的是检测辅助导航设备和机载传感器的故障,并在这些传感器可能发生故障时提供可靠的飞机状态估计值。自动导航和控制系统利用这些状态估计控制和引导飞机按预定路线降落。

FAULT TOLERANT NAVIGATION FOR AIRCRAFT LANDING

This paper studies a sensor fault tolerant system for an aircraft in a Microwave Landing System (MLS) environment. The objective of the fault tolerant system is to detect failures in navigation aid instruments and on-board sensors and to provide reliable estimates for the aircraft states in the possible presence of these sensor malfunctions. A failure detection and isloation (FDI) algorithm is used to detect and isolate the navigation aid instrument failures. The nonlinear filtering techaique using separated-bias estimation is used to generate the state estimation of the aircraft. State estimates are used by an automatic guidance and control system to land the aircraft along a prescribed path.