Novel fault diagnosis of satellite attitude control system based on EMD

作者：Zhang Xiaolei^*; Shen Yi; Zhang Yingchun

来源：Journal of Huazhong University of Science and Technology (Natural Science Edition), 2009, 37(SUPPL. 1): 204-206.

• Adaptive signal decomposition
• Adaptive signal processing
• Empirical Mode Decomposition
• Fault diagnosis
• Fault symptoms
• Output signal
• Physical meanings
• Satellite attitude control systems
• Sensor output
• Signal features
• Simulation result

For the purpose of fault diagnosis in satellite attitude control system, the fault symptoms of sensor output signals should be determined at first. Empirical mode decomposition (EMD) can be employed to decompose the output signals and the fault symptoms can be concluded. The power of Empirical mode decomposition lies on its automatic and adaptive signal decomposition ability and its decomposition results have clear physical meanings. Simulation results indicate that the application of empirical mode decomposition to signal feature extraction and fault diagnosis is feasible.

• 出版日期2009