【摘要】 研究了参数不确定系统的鲁棒H∞估计问题。用MATLAB工具箱中的函数hinflmi来设计H∞估计器,是一种H∞优化设计,会导致过宽的估计器带宽。文中导出了一个用于H∞次优设计的线性矩阵不等式,利用这单一的LMI,选择一个次优值γ就可以控制带宽以减少估计误差。更多还原

【Abstract】 The robust H∞, estimation for systems with parameter uncertainties is discussed. The design of H∞ estimator by using function hinflmi() of the MATLAB toolbox is an optimal H∞ design and the bandwidth of the resulted estimator may exceed the required value. A linear matrix inequality for H∞ sub-optimal design is deduced in this paper which can reduce the estimation error by selecting a sub-optimal value γ to get the proper bandwidth.更多还原