自由空间中箔条云极化散射的多普勒谱特性  

Polarization scattering Doppler spectral characteristics of chaff cloud in outer space

作　　者：李永祯[1] 谭芳[1] 汪连栋[1] 王雪松[2] 王国玉[1] 

机构地区：[1]中国人民解放军63880部队 [2]国防科技大学电子科学与工程学院

出　　处：《航天电子对抗》2006年第5期30-33,共4页Aerospace Electronic Warfare

基　　金：全国优秀博士论文专项资金资助项目(08100101);"十五"国防预研计划项目(41303517)

摘　　要：研究了自由空间中箔条云团极化散射的多普勒谱特性。建立了自由空间中箔条云团的扩散模型,并导出箔条云团等多普勒的解析表达式,得出其近似为等波程的结论。在此基础上,分析了任意极化电磁波激励下箔条云团反射场的频谱特性,并给出了箔条云团散射截面积在多普勒频移上的统计分布。The polarization scattering Doppler spectral characteristics of chaff clouds in outer space are studied. Firstly,a diffusion model of chaff clouds in outer space is founded and the equal-Doppler equation of chaff clouds is also given. Then, a conclusion that the equation approximated to equal wave path equation is derived. Thereby, polarization scattering Doppler spectral characteristics of chaff clouds＇irradiated by arbitrary polarization electromagnetic wave are analyzed and statistical distribution of chaff clouds＇RCS in Doppler frequency shift is presented.

关 键 词：箔条云团 多普勒谱特性 极化 散射截面积 统计 

分 类 号：TJ761.3[兵器科学与技术—武器系统与运用工程]