滚转导弹飞行干扰因素的辨识

FLYING DISTURBANCE IDENTIFICATION FOR A ROLLING MISSILE

本文简要地论述了导弹飞行中的初始扰动、推偏扰动以及风扰动的辨识方法。重点地对非定常的风扰动的辨识问题进行了研讨,提出了两种有效的辨识方法。第一种,离散化反卷积辨识法,具有理论上的价值,并可实用于较短弹道(如数千米长)上的干扰风辨识问题。第二种,并行仿真递推辨识法,可用于较长弹道(如数十公里)上的干扰风辨识问题。两种方法都具有足够的辨识精度。

Several methods of identifying disturbance factors,i.e.the initial kick,the thrust misalign- ment and the windshear during a flying process of a rolling missile,are briefly discussed.The emphasis is on the identification of time-variant windshears.Two methods are proposed and both of them are shown to be ef- fective and accurate enough.The first is named discrete deconvoluion method which can be used when the length of trajectory is limited(i.e.several kilometers).The second is named recursively parallel simulation and it is suitable for sloving the problem of identifying disturbance even when the length of trajectory is as long as severel ten kilometers.