信道衰落情形下随机时变时滞系统故障估计

发布时间：2018-06-23 05:18

  本文选题：网络化系统 + 故障估计　； 参考：《吉林大学学报(信息科学版)》2016年06期

【摘要】：为解决一类受信道衰落影响的随机时变时滞系统的故障估计问题,利用一系列相互独立且服从伯努力分布的随机变量描述通讯时滞的随机发生特性。通过改进的L阶莱斯衰落模型反映信道衰落现象,应用Lyapunov稳定性理论、随机分析技术和LMI(Linear Matrix Inequality)技术得到故障估计器存在的充分条件,在求解LMI的可行解后,给出期望估计器增益的表达式。通过数值仿真得到了确保增广的故障估计动态系统均方指数稳定且满足H∞性能约束的估计器增益,从而证明了该故障估计方法的有效性。
[Abstract]:In order to solve the problem of fault estimation for a class of stochastic time-varying time-delay systems affected by channel fading, a series of independent random variables with slave effort distribution are used to describe the stochastic occurrence characteristics of communication delays. The improved L order Rice fading model is used to reflect the channel fading phenomenon. By using Lyapunov stability theory, stochastic analysis technique and LMI (Linear Matrix inequality) technique, sufficient conditions for the existence of the fault estimator are obtained. The expression of the desired estimator gain is given. By numerical simulation, the estimator gain is obtained to ensure the mean square exponent stability of the augmented fault estimation system and satisfy the H 鈭，

本文编号：2055955