CAJ | 학술논문

该文提出一种基于柱面扫描近场成像的RCS(Radar Cross Section)测量新方法：以理想的各向同性点散射中心模型为核心假设，通过详细的理论推导给出了一种具有通用性的基于柱面扫描近场成像的RCS测量方法。该方法先得到目标的3维雷达散射图像，再通过这些等效理想散射中心的散射场叠加获得远处散射场进而给出目标的远场RCS值。该方法不仅能得到被测目标的3维雷达散射图像，还能获得一定立体角域的目标远场RCS。相比只能得到2维雷达散射图以及2维平面角域RCS结果的圆迹扫描测试相比，该文所提的柱面扫描测试能得到更多的目标散射信息，具有较强的实用性。仿真结果验证了新方法的可靠性。
해문제출일충기우주면소묘근장성상적RCS(Radar Cross Section)측량신방법：이이상적각향동성점산사중심모형위핵심가설，통과상세적이론추도급출료일충구유통용성적기우주면소묘근장성상적RCS측량방법。해방법선득도목표적3유뢰체산사도상，재통과저사등효이상산사중심적산사장첩가획득원처산사장진이급출목표적원장RCS치。해방법불부능득도피측목표적3유뢰체산사도상，환능획득일정입체각역적목표원장RCS。상비지능득도2유뢰체산사도이급2유평면각역RCS결과적원적소묘측시상비，해문소제적주면소묘측시능득도경다적목표산사신식，구유교강적실용성。방진결과험증료신방법적가고성。
A new method of Radar Cross Section (RCS) measurement based on near-field imaging of cylindrical scanning surface is proposed. The method is based on the core assumption that the target consists of ideal isotropic scattered centers. Three-dimensional radar scattered images are obtained by using the proposed method, and then to obtain the RCS of the target, the scattered far field is calculated by summing the fields generated by the equivalent scattered centers. Not only three dimensional radar reflectivity images but also the RCS of targets in certain three dimensional angle areas can be obtained. Compared with circular scanning that can only obtain two- dimensional radar reflectivity images and RCS results in two-dimensional angle areas, cylindrical scanning can provide more information about the scattering properties of the targets. The method has strong practicability and its validity is verified by simulations.