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控制理论与应用 2011
Quantized control for delay-dependent networked control systems:piecewise delay method
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Abstract:
The piecewise delay method for quantized networked control system is proposed for reducing the conservativeness in the delay-dependent analysis, raising the delay upper bound and lowering the data transmission rate in the network. The delay-falling in one small subinterval is treated as a case. For different cases we adopt different free weighting matrix, and make use of the convexity of the matrix function to derive the corresponding stability criteria. The upper bound of the delay and the gain of the quantized state feedback controller can be determined by solving several sets of linear matrix inequalities. Numerical examples demonstrate the effectiveness of the proposed method.