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为降低超宽带合成孔径雷达探雷中地雷检测的虚警,需要根据地雷的电磁散射特性设计检测器。把介质地雷等效为双圆柱结构,利用旋转体的结构特征用矩量法计算了半空间地雷的电磁散射,对各个步骤进行了详细分析。最后给出了某型号埋地塑料地雷电磁散射的计算结果,并与相同条件下同型号金属地雷的电磁散射进行了比较,分析了两者的不同特性,结果表明相同条件下介质地雷的散射回波与金属地雷的回波非常相似,但幅度明显小于金属地雷。
In order to reduce the false alarm of landmine detection in UWB SAR, it is necessary to design the detector according to the electromagnetic scattering characteristics of the landmine. The medium mines are equivalent to the double cylinder structure, and the electromagnetic scattering of the half space mines is calculated by the moment method using the structural features of the rotating body. The detailed analysis of each step is carried out. Finally, the electromagnetic scattering results of a certain type of buried plastic mine are given and compared with the electromagnetic scattering of the same type of metal mine under the same conditions. The different characteristics of the two are analyzed. The results show that under the same conditions, Waves and metal mines echo very similar, but significantly less than the magnitude of metal mines.