用于雷达回波信号实时模拟的弹道目标RCS解析公式

对弹道目标进行满足精度要求的雷达回波实时模拟是一项综合性较强的工程,是目标探测、识别的关键。基于几何绕射理论(GTD)和物理光学法(PO),推导给出了某大型弹道目标在微波频率下任意视线角的RCS解析公式。文中方法和FEKO软件的计算结果符合良好且计算速度极快,利用文中方法得到的结果进行的一维距离像仿真与理论结果吻合较好,可以满足基于目标电磁散射特征的再入大气层弹道目标雷达回波信号实时模拟的精度需要。

RCS Explicit Formulations of A Large Ballistic Target Used for Real Time Simulation of Radar Based on Reentry Ballistic Target Echo

To meet the real-time simulation of ballistic target radar echo precision requirement is a stronger comprehensive project, it is a key to the target detection and recognition. In this paper, a calculation formula of a large ballistic target in explicit RCS arbitrary angle of sight is given under microwave frequency based on GTD and PO method. The results computed by using this method agree with that by using the FEKO software and the calculation speed is extremely high. Using the data obtained by this method to realize the High Resolution Range Profiles (HRRPs), the results of simulation and theory are in good agreement with each other, and can meet the need of real time simulation precision of radar based on reentry ballistic target echo signal of target electromagnetic scattering characteristics.