飞行控制系统故障检测方法研究

以某型飞机为研究对象，论述了一种基于模型的自修复飞行控制系统故障检测方法。首先提出了通过等价空间法产生残差序列，并对残差序列进行概率比检测，以获得一定置信度下的检测结果。同时舵面损伤故障的概率比检测采用预警检验、校验检测与隔离检测相结合的方法。最后，对所设计的故障检测方法进行了数字仿真研究。仿真结果验证了该方法具有较高的准确性和实时性，为飞行控制系统故障检测提供了一种有效的手段。

Study of failure detection methods in flight control systems

A method of model based failure detection in self repairing flight control systems is dealt with in this article For the first time, the method of parity space is adopted for producing residual sequences and testifying the probability ratio so as to achieve test results under certain confidence level To fulfill the accuracy and real time requirement simultaneously, a combination of alert detection, verification detection and isolation detection is used to detect control surface failure probability ratio