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综合利用GO/AP算法和CST仿真软件分析了顶角切除和角度公差对三角形三面角反射体(Triangular Trihedral Corner Reflector,TTCR)单站雷达散射截面积(Radar Cross Section,RCS)的影响。研究了三种顶角切除的样式,理论分析和仿真结果表明,只要将顶角切除的尺寸控制在垂直边长的10%以内,三种切除样式对TTCR的RCS影响将十分有限。在角度公差方面,研究了两侧面同时向内或向外偏离90°的情况,发现要使RCS缩减量不超过-3 dB,角度公差应控制在0.5°以内。
The effects of corner cutting and angle tolerance on the Radar Cross Section (RCS) of Triangular Trihedral Corner Reflector (TTCR) were analyzed using GO / AP and CST simulation software. Three patterns of apical resection were studied. The theoretical analysis and simulation results showed that the three types of excision patterns would have a very limited impact on the RCS of the TTCR as long as the size of the apical resection was controlled within 10% of the vertical length. In terms of angular tolerance, we studied the case that both sides were deviated 90 ° inwardly or outwardly at the same time. It was found that the RCS should not be reduced by more than -3 dB and the angular tolerance should be controlled within 0.5 °.