双基地雷达微动空间目标全极化回波仿真方法

由于双基地雷达具有反隐身、抗干扰、抗摧毁等诸多天然优势, 双基地雷达的目标探测和识别问题逐渐成为研究热点。以双基地雷达微动空间目标为研究对象, 首先分析了电磁计算双基地散射数据和双基地雷达目标回波的对应关系, 然后指出了利用电磁计算数据获得的目标仿真回波与目标真实回波极化坐标系的差异, 并提出了相应的校正方法, 最后进行了仿真验证。结果表明, 所提方法保证了电磁仿真回波数据与实测回波数据的极化一致性, 可以为后续的双基地雷达目标特征提取、目标识别等算法研究提供数据支撑。

Simulation method of fully polarized bistatic radar echoes for micro-motion space targets

Due to the good performance of anti-stealth, anti-jamming, and anti-destruction, the detection and recognition issues of bistatic radar systems have attracted great attention. In this paper, the micro-motion space targets are selected as the research objects. Firstly, the relationship between the calculated complex radar cross section (RCS) data and the target echoes are analyzed. Then, the difference in polarization reference plane of the simulated radar echoes and the realistic target echoes is pointed out. After that, the modification method is proposed, At last, simulation results are given to validate the presented algorithm. By this algorithm, the polarization characteristics of simulated echoes are realized more consistent with the real received target echoes. This presented technique can be used to provide echo data on the algorithm research of feature extraction and recognition of micro-motion space targets based on bistatic radar.