基于异步切换的飞行器网络控制系统故障检测

针对网络化飞行器故障检测系统在多工作点间切换情况，考虑时延和丢包导致的滤波器切换时刻滞后于飞行器模型切换时刻问题，提出一种基于异步切换系统的故障检测算法。将网络环境下大包线内多工作点飞行器建模为异步切换系统，基于李亚普诺夫函数和平均驻留时间法，给出了具有异步切换形式的故障检测系统全局一致渐近稳定的充分条件，进一步利用线性矩阵不等式（linear matrix inequation， LMI）工具求取滤波器参数。数值仿真验证并分析了所提方法的有效性。

Fault detection for flight vehicle networked control systembased on asynchronous switching

In networked flight vehicle fault detection systems that switch among multiple operating points, time delay and dropout may lead the filter switching lag behind the switching of the flight model. A fault detection algorithm based on asynchronous switching systems is presented. The flight vehicle that operates on multiple points within a large-scale flight envelope under network circumstance is modeled as an asynchronous switching system. The sufficient condition for globally uniformly asymptotically stability (GUAS) is proposed based on Lyapunov functions and average dwell time method. The filter parameters are solved by a series of linear matrix inequations (LMI). A numerical example is provided to illustrate the validity of the devised approach.