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对三角板角反射器的散射特性进行分析,提出了其在单站及收发分离单站RCS(Radar Cross Section)定标测试中的应用方案.三角板角反射器后向散射方向图的主瓣部分很宽且很平缓,并具有较强的方位稳定性,适用于较大RCS目标的单站定标测试.但在收发分离的单站RCS定标测试系统中,发射馈源与接收馈源间存在一个小双站角,这会使得三角板角反射器散射方向图的主瓣部分急剧下降,并呈现较强的纹波,从而无法利用其进行精确定标.而其散射方向图的某一旁瓣部分,在存在小双站角时的变化不大,且同样具有较强的方位稳定性,故可利用旁瓣峰值作为收发分离单站RCS测试中的定标参考点.
The scattering characteristics of the triangular corner reflector are analyzed, and its application in the calibration of single station and the single station RCS (Radar Cross Section) is proposed. The main lobe part of the back-scatter pattern of the triangular corner reflector Wide and very smooth, and has a strong azimuth stability, suitable for larger RCS target single-station calibration test.But in the single-station RFS calibration test system transceiver separation, the transmitter feed and receiving feed exist A small bifurcation angle, which causes the main lobe portion of the triangular corner reflector scatter pattern to drop sharply and present a strong ripple that precludes its use for accurate calibration, while a side lobe portion of its scatter pattern , Small changes in the presence of small bimodal angle, and also has strong azimuth stability, it can use the sidelobe peak as a single station to send and receive separation RCS test calibration reference point.