Method for diagnosing and evaluating satellite intelligent fault system

The invention discloses a method for diagnosing and evaluating a satellite intelligent fault system. The method comprises the following steps: S1, establishing a satellite system multi-signal model by combining a satellite system structure design, a satellite test system structure design and satellite reliability analysis; s2, a modeling engineer sorts out a test data processing rule, models and analyzes through system structure design, test system structure design, reliability analysis and a fault propagation model of each subsystem; s3, performing data processing and judgment according to a test data processing rule after fault extraction, establishing a fault test correlation matrix according to modeling and analysis, and developing a real-time monitoring and diagnosis module for the satellite system; a diagnosis strategy generated by a satellite system multi-signal model is utilized, interactive real-time fault diagnosis is realized through a decision tree inference engine, and a diagnosis strategy requir