弹道导弹雷达散射截面研究一直是反导作战中的关键问题,针对弹道导弹被动段飞行的特性,利用椭圆弹道理论构建了弹道导弹被动段弹道,根据弹道导弹和雷达的几何位置关系,建立视线角计算模型,运用高频理论建立弹道导弹被动段的RCS计算模型。最后,利用构建的模型计算了某型弹道导弹被动段动态RCS,并对计算结果进行了分析,结果表明,这是一种计算弹道导弹被动段动态RCS的有效方法。

The study on Radar Cross Section(RCS) of Tactical Ballistic Missile(TBM) is one of the critical issues in anti-TBM research.Considering the flight characteristics of TBMs post-boost guidance phase,we built up the trajectory of TBMs post-boost phase by adopting the ellipse trajectory theory.Then a model for calculating the angle of sight was established according to the geometric position relationship of the TBM and radar.The RCS model of the TBMs post-boost guidance phase was also built up by using high frequency theroy.Finally,the constructed model was used for calculating the dynamic RCS for the post-boost phase of one kind of TBM,and the result shows that our method is an effective way to study the dynamic RCS of TBMs post-boost phase.