论文信息 - Fault diagnosis in satellites using H/sub /spl infin// estimators

Fault diagnosis in satellites using H/sub /spl infin// estimators

A model-based approach for on-line fault diagnosis in satellite is presented in this paper. The satellite studied is named MICROSCOPE. MICROSCOPE is a micro satellite under development at CNES (Centre National d'Etudes Spatiales, France). Its attitude and linear acceleration are controlled by 12 thrusters. The class of faults to be diagnosed is the thruster's faults occurring when a thruster blocks itself or closes itself during operating. The method used to tackle the problem is based on H/sub /spl infin// fault estimations techniques. The solution involves linear matrix inequalities (LMI) optimization techniques. Simulation results illustrate the potential of the method.

David Henry | Ali Zolghadri | Sylvain Grenaille

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