Abstract
摘要: 针对一类具有非线性不确定离散非线性系统设计了可靠H∞滤波器. 设计的结果使得滤波误差系统在标称状态及具有传感器失效状态时不仅是渐进稳定的, 而且满足给定的H∞范数约束. 采用Lyapunov稳定性理论和线性矩阵不等式技术给出了滤波器存在的充分条件. 而且, 为了减少设计的保守性及得到更好的性能, 我们利用松弛变量来解耦Lyapunov矩阵及系统动态矩阵. 数值仿真例子说明设计方法的有效性. 关键词: H∞滤波 / 可靠滤波 / Lyapunov函数 / 传感器失效 / 线性矩阵不等式(LMI)
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