Study on Construction of Trajectory for Ballistic Missile Early Warning Simulation System

Building ballistic trajectory and calculating ballistic missile's position are pre-requisite for constructing ballistic missile early warning simulation system.Firstly,based on minimal energy trajectory theory,this paper built missile closing engine point mathematic model and passive phase kinematic model under the hypothesis that the earth did not rotate.Secondly,the accurate missile closing engine point uneler the considering of earth rotation was calculated and the ballistic missile passive phase trajectory under the inertia rectangular coordinate systems was build.Lastly,the ballistic para meters using this method were verified by the parameters using STK,the results demonstrate the correctness of this method.