基于CADET的弹道交会误差变化规律分析

运载器弹道与预测命中点之间的交会误差是拦截器分离点误差引起的。分离点的位置误差、速度误差对于弹道交会误差的影响,既取决于其本身的大小,也取决于分离点到达预测命中点的时间。依据分离点误差推算弹道飞行的误差变化规律,是进行运载器制导控制系统分析与误差分配的前提条件。本文通过采用协方差分析描述函数法,对弹道误差变化规律进行了有效分析。仿真结果证明了这种方法的有效性。

Analysis of Trajectory Rendezvous Error Profile Based on CADET

The rendezvous error between launch vehicle and target forecast is caused by separation point error of intercept.The influences to rendezvous error caused by position error of separation point and speed error are different,which not only depend on the position error and speed error themselves,but also relate to the flight time between separation point and targeting point.Based on the separation point error calculation,the error variation of missile flight is the premise for system analysis and error distribution of launch vehicle.This thesis makes an efficient analysis on missile intercepting error based on CADET method.The effectiveness of this method is proved by simulation.