飞行控制系统鲁棒性定量评估方法研究  

Robustness Evaluation of Flight Control System

作　　者：张清江[1] 王新民[1] 沈宁[1] 李俨[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《计算机仿真》2010年第11期57-61,共5页Computer Simulation

摘　　要：优化飞控系统性能的研究,针对控制飞行系统性能要求性能的稳定性和精确性是重要指标。为实现上述指标的评估,传统的方法对控制系统鲁棒性的评估仅限于定性评价,进行定量评估是当前的一个难点。提出鲁棒度的概念,结合层次分析法(AHP),提出一种概率鲁棒分析的鲁棒性定量评价方法,对飞行控制系统进行性能评估,通过在任意给定性能水平下的性能可接受概率值计算,得出系统鲁棒性能的定量评价,可以较为直观地对不同飞行控制系统鲁棒性能的优劣做出比较,从而解决了飞行控制系统鲁棒性定量评估方法。仿真结果进一步验证了算法的有效性。Robustness is a particularly important predictor of control system,evaluation of control system robustness is limited to qualitative one at home and abroad,and ideal quantitative evaluation algorithm has been a current difficulty so far.In this paper,a quantitative evaluation method of robustness based on probability robust analysis is proposed by introducing the concept of robust degree and Analytic Hierarchy Process（AHP）.By taking flight control system as an example,a relatively intuitive comparison can be made for robust performances of different flight control systems.By means of calculating acceptable probability value under any given performance level,quantitative evaluation of system robust performance.is obtained.The simulation results further verify the validity of this algorithm.

关 键 词：鲁棒性评估 鲁棒度 概率鲁棒分析 飞行控制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]