【作者】 王婧怡； 苏醒； 覃蒙群； 张思楠； 刘浚雄； 赵琪； 左炎春； 刘伟；

【Author】 Wang Jingyi;Su Xing;Qin Mengqun;Zhang Sinan;Liu Junxiong;Zhao Qi;Zuo Yanchun;Liu Wei;Xidian University;

【机构】 西安电子科技大学；

【摘要】 在复杂电磁环境中,目标体除受到雷达辐射源照射之外还会受到其他电子设备所发射相同频率电磁波的照射,在多辐射源照射下目标体产生调制效应而造成的散射特性与目标体固有散射特性截然不同,有必要针对多辐射源照射下目标的散射特性进行研究。由于有源雷达散射截面(ARCS)被定义为表征多辐射源照射下目标散射能力的参数,本文对不同特征(入射角度、场强、相位)的电磁波照射下金属球模型的ARCS进行了仿真模拟。同时,建立了射频干扰信号模型,研究了射频干扰照射下目标ARCS的统计特性。结果表明,多辐射源照射对目标的散射特性有显著影响,射频干扰照射下目标的ARCS体现了较大的波动性。更多还原

【Abstract】 In complex electromagnetic environments,targets are subjected not only to illumination from radar emissions but also to electromagnetic waves of identical frequencies originating from other electronic devices.This multi-source irradiation induces modulation effects that generate scattering characteristics fundamentally distinct from the target’s inherent scattering properties,necessitating dedicated investigation into target scattering behavior under such conditions.Given that the Active Radar Cross-Section(ARCS) serves as the defining parameter for quantifying target scattering capability,we have systematically simulated and analyzed the ARCS of a metallic sphere model under electromagnetic wave irradiation with varying incident angles,field strengths,and phase characteristics.Furthermore,we developed a specialized RF interference signal model to examine the statistical properties of target ARCS under RF interference conditions.Our findings conclusively demonstrate that multi-source irradiation significantly alters active scattering characteristics,with target ARCS exhibiting substantial fluctuation behavior under RF interference exposure.更多还原