导弹的最小方差容错控制

 提出了一种新的容错控制方案:随机参数最小方差控制。在这种方案中,控制对象被表达成为参数具有概率分布的随机模型。容错控制是随机参数和随机噪声情况下的最小方差控制。针对舵机回路传感器故障,设计了地空导弹容铅控制系统,并进行了数字仿真。结果表明,当导弹控制系统发生故障时,常规最小方差控制失效,但最小方差容错控制具有良好的动态响庆性能。

MISSILE FAULT-TOLERANCE BY MINIMUM VARIANCE CONTROL

This paper proposes a new algorithm of fault tolerant control: Minimum Variance Control on Random Parameter. In this method, a controlled process is presented as a random model whose parameters have probability distributions. The fault tolerant control is of mini-mum variance control in the case of random parameters and noises. The fault tolerant control system of ground to air missile which has a sensor failure of rudder control loop is designed and simulated by digital computer. The result of simulation indicates that when the failure of missile control system occurs, a normal minimum variance control is out of order but the fault tolerant control of minimum variance obtains a good performance of dynamical response.