雷达目标角闪烁特性仿真分析

目标角闪烁偏差是限制跟踪雷达，尤其是近距离跟踪雷达的角跟踪精度的主要因素。在实际跟踪和制导中，如果对目标回波信号的角闪烁偏差处理不当可能加大雷达跟踪目标的误差，甚至丢失目标。因此对角闪烁偏差的研究将有助于提高跟踪目标的准确率。本文首先对目标进行几何建模，得到模型的三角面元信息；然后基于面元信息，应用等效电磁流方法（MEC）计算目标的电磁回波场；再利用相位梯度方法完成目标的角闪烁计算，从而提高了计算精度. 最后，选用立方体目标进行角闪烁校模，证明了此方法的可行性。

Simulation of angular glint for radar targets

The glint error is the main factor which influences the angle accuracy of tracking radar, especially for terminaltracking radar. In the practice of tracking and guidance, if the process of glint error is inappropriate, the tracking error of radarmay increase, even lose the target. So the research on glint error can improve the accuracy of radar to track the target. The trianglecell information is obtained by the established geometry model of target firstly; and then the electromagnetic (EM) scattering fieldis computed by the method of equivalent current (MEC); finally, the feasibility of this method is validated by the cube model.