基于相干散射模型箔条云团散射截面研究  

Study on Chaff Cloud Scattering Cross Section Based on Coherent Scattering Model

作　　者：王雪松[1] 李永祯[1] 帅鹏[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《现代雷达》2003年第2期5-10,共6页Modern Radar

基　　金：国家自然科学基金资助项目 (No.6 990 2 0 10 )

摘　　要：采用箔条云团的相干散射模型〔1〕研究了自由空间中云团散射截面与其空间分布的依赖关系 ,定量地给出了几种典型空间分布箔条云团的极化散射截面与其空间分布参数的关系曲线或曲面 ,计算机仿真结果表明 :箔条云团散射截面因其空间分布形式的不同而有较大的差异 ,某些情况下 ,不同空间分布的散射截面之间的差异可达 8～ 12 d B之多 ,通过设计箔条云团的空间分布形状及其密度分布 ,可有效地增大箔条云团的有效散射截面 。In this paper, the coherent scattering model is used to study on dependency relationship between chaff cloud and its spatial distribution in the outer space. Curves and curved surfaces between scattering cross section of some typical distribution chaff cloud and its spatial distribution parameters are given. Experiment results show that chaff cloud′s scattering cross section greatly varied with different spatial distribution form. In some instances, variation of chaff cloud′s scattering cross section can reach 8~12dB. Significantly, the effective scattering cross section of chaff cloud can be increased by optimizing the distribution of chaff cloud, then interfere effect can greatly improved.

关 键 词：相干散射模型 箔条云团 散射截面 计算机仿真 无源干扰技术 

分 类 号：TN972[电子电信—信号与信息处理]