复杂弹头目标微运动的建模与仿真

Modeling and simulation of micro-motion in the complex missile target

通过对雷达目标旋转微运动的分析,推导了点源目标的微多普勒频偏计算公式。以静态电磁理论建模为基础,提出了锥旋弹头的动态电磁建模方法,仿真得到锥旋弹头的RCS回波,并用时频方法对回波进行了分析。仿真结果与理论计算对比,证明了理论推导的正确性。

The rotating motion of radar targets is introduced. The formulas of micro-doppler for point-model targets are derived,and some simulations for a warhead with a sphere-head cone is given. On the base of the static modeling,a new method of dynamic electromagnetic modeling is provided. The time-domain returned signals of the cone warhead target can be simulated in this method. The simulation results are in agreement with the theoretical result.