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飞行器网络控制系统故障检测与时域优化

DOI: 10.13700/j.bh.1001-5965.2013.0279, PP. 407-412

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Abstract:

针对存在马尔可夫短时延和丢包的网络环境,研究了飞行器网络控制系统的故障检测系统设计与优化问题.将含有上述问题的网络化控制系统建模为离散的马尔可夫跳变系统.在此基础上,基于观测器构建残差生成器,将故障检测问题转换成H∞滤波问题,以LMI(LinearMatrixInequality)的形式得到并证明了故障检测滤波器存在的充分条件和求解方法.为进一步改善检测性能,提高检测系统对故障信号的灵敏度,采用一种时域优化方法对残差评估函数进行优化处理,并给出了该优化问题最优解的求解方法.数值仿真说明了所提方法的有效性.

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