Sliding mode quantized feedback control for uncertain linear systems with unknown actuator faults

In this paper, a sliding mode quantized feedback control problem for uncertain linear systems with unknown actuator faults is proposed. It is assumed that the lower bound of actuator fault information is unknown. Traditional sliding mode quantized feedback control strategy cannot deal with unknown lower bound of actuator faults. Therefore, taking fully use of adaptive mechanism, a new adjustment range of quantization sensitivity for a dynamic uniform quantizer static adjustments policy of quantization sensitivity is then given. Based on this, a static adjustment policy of quantization sensitivity is proposed and a sliding mode quantized feedback control law is designed to compensate actuator faults. To demonstrate the efficacy of the proposed scheme, a model of a rocket fairing structural-acoustic is considered in the simulation.

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