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本文基于Ｈ∞最优理论和矩阵奇异值分解技术，对卫星轨道保持系统进行了分散容错控制，提出了容许执行机构故障和传感器故障的两种分散控制律设计方法，可使卫星控制系统具有明显的容错能力。
Based on the H∞ optimal theory and the matrix singular value decomposition technique, the decentralized fault-tolerant control of the satellite orbit keeping system is proposed. Two decentralized control law design methods are proposed, which can tolerate the failure of the actuator and the sensor fault. The proposed method can make the satellite control system have obvious Fault tolerance.