Ground test verification method for fault diagnosis and disposal of satellite attitude and orbit control subsystem

Autonomous function is becoming more and more important in satellite attitude and orbit control subsystem. In order to ensure the robustness of on-orbit independent operation and the safety of the whole satellite, fault diagnosis and disposal function have gradually become an important part in the design of attitude and orbit control subsystem. The ground test verification method for the fault diagnosis and disposal function of the attitude and orbit control subsystem also needs to be further studied. Based on the composition of satellite attitude and orbit control subsystem, fault diagnosis and disposal logic, the ground test verification method is studied in this paper. It mainly includes fault simulation method and test verification method. The fault simulation method introduces three methods: environment simulator, device simulator and bus data injection. This paper introduces the test verification method for the result of fault logic design and the test verification method for the requirement of fault logic design. The application characteristics and requirements of each method are described in detail, and the actual test cases are finally presented. The method can be used to guide the design of test and verification scheme of fault diagnosis and disposal logic of satellite attitude and orbit control subsystem and provide reference for other subsystems or spacecraft to carry out similar work.