Fault Diagnosis Method of Radar Receiver Using Multi-Signal Flow Graphs Model

The fault diagnosis model of radar receiver is built by applying multi-signal flow graphs. Based on the model the dependence matrix which relates faults and tests is generated and an algorithm calculating Bayes maximal posteriori probability of fault sources is derived. This algorithm is applied in fault diagnosis of radar receiver, and the real-time multi-fault locations are realized by using the maximal posteriori probability of fault sources as judging rule.