空-空导弹微分对策最佳导引律的研究

本文研究空-空导弹微分对策最佳导引问题中目标加速度及导弹加速度对制导精度的影响。根据推得的三类制导律讨论了指标中权系数的选择原则,并给出了剩余飞行时间（time-to-go）的两种估计方案。仿真结果表明:导弹侧向加速度作为制导信号对导引精度有十分明显的提高,如果目标加速度不大,在制导过程中引入目标加速度则效果不显著。

A STUDY OF DIFFERENTIAL GAME OPTIMAL GUIDANCE LAWS FOR AIR-TO-AIR MISSILES

Studies in this paper are the effects of target and missile accelerations on terminal miss-distance in differential game optimal guidance for air-to-air missiles. According to the three types of guidance laws obtained, the choice of the weigh ting factors in performance index is discussed and two schemes of time-to-go estimation are given. The simulation shows that missile lateral acceleration, when taken as guidance signal, significantly improves the terminal accuracy, and target acceleration, if it is not large enough when introduced into guidance process, generally has no such big effect.