弹道导弹被动段雷达截面积仿真计算研究

Simulation of Midcourse RCS of TBM

为计算弹道导弹被动段的雷达截面积,根据其被动段飞行的运动学特性,利用椭圆弹道理论仿真计算出了导弹被动段飞行弹道,同时在大地直角坐标系中通过解算雷达、导弹与地心的空间几何关系,求得导弹的实时视角值。结合导弹的几何尺寸特征,利用高频区理论计算方法计算出弹道导弹被动段飞行时的实时雷达截面积值。对研究弹道导弹的防御和突防具有重要的理论意义和参考价值。

In order to compute the TBM （Tactical Ballistic Missile）＇s RCS （Radar Cross-Section） in midcourse, based on the TBM＇s kinematic characters of midcourse, the trajectory was simulated by using the ellipse trajectory theory. Then the dynamic visual angle was worked out through computing the space geometry connection of radar, missile and the earth core in the earth right-angle reference frame. Combining with the missile＇s shape size, the RCS was worked out with the high-frequency method. And this is valuable and has great meaning in the research of penetrating and defending the TBM target.