Optimal Guidance Law Design for Reentry Vehicle Using Virtual Displacement Concept
会议名称：《第二十六届中国控制会议》
会议日期：2007年
学科分类：08[工学] 081105[工学-导航、制导与控制] 0811[工学-控制科学与工程]
基 金：supported by National Nature Science Foundation under Grant 10572042
关 键 词：Optimal reentry vehicle guidance law virtual displacement linear quadratic gauss
摘 要：The new predictive guidance law for reentry vehicle is presented in this *** proposed approach is based on the fact that lateral forces are formed to a plane perpendicular to the reentry vehicle *** particular,the nominal ground location is defined as the ground location generated by the zero lift trajectory,the virtual displacement is defined as the small changes of the nominal ground location,this changes is caused by any instantaneous lateral force at the beginning of the *** optimal direction of the lateral force is searched by the solution to the optimal virtual displacement,in which case the virtual displacement is pointing to the target ground *** analytical solution to the reentry trajectory and the linear quadratic gauss（LQG）method are used in this guidance *** simulation results show that the effectiveness of proposed method.