A Re-entry Guidance Method for Vehicle Using Virtual Displacement Concept
会议名称：《2010 Chinese Control and Decision Conference》
会议日期：2010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 10902026 Specialized Research Fund for the Doctoral Program of Higher Education under Grant 200802137077
关 键 词：Reentry Vehicle Guidance Law Virtual Displacement Analytical Solution LQG
摘 要：正A new guidance law for reentry vehicle is presented in this *** proposed approach is based on the fact that lateral force is formed in a plane which is perpendicular to the reentry vehicle ***,the nominal impact point is defined as the impact point generated by zero lift *** virtual displacement is defined as the tiny change of the nominal impact point,which is caused by any instantaneous lateral force at the beginning of the traj *** optimal direction of the lateral force is obtained by the solution of optimal virtual displacement,in which the optimal virtual displacement should point to the *** analytical solution of reentry trajectory and the linear quadratic gauss（LQG） method are used to design this guidance *** simulation results demonstrate the effectiveness of the proposed method