基于入射散射极化优化的抗箔条干扰方法  

Anti-chaff Method Based on Optimizing Polarization of Incident and Scattering Form

作　　者：党晓江[1,2] 李政杰[1] 李欣[1] 

机构地区：[1]空军工程大学防空反导学院 [2]94175部队

出　　处：《数据采集与处理》2015年第6期1253-1261,共9页Journal of Data Acquisition and Processing

摘　　要：国内外的大多数研究没有综合考虑入射极化对散射幅度、散射极化的定量影响。通过构建雷达视线方向非相干箔条云瞬时极化散射模型,获得了一组特定入射条件下的极化散射统计数据,并对其进行基于极化坐标系扭曲的处理,同时讨论了箔条云对入射极化的选择特性。数值仿真结果表明,当扭曲因子较大时,处理后的极化状态概率近似分布在水平极化域,同时雷达俯仰角较小时,箔条云对入射极化具有良好的选择性。本文结论可以作为极化抗箔条干扰的初级优化方案,为极化滤波等后续极化信息处理打下基础。Most research for anti-chaff using polarimetric information at home and abroad are considered without the influence of incident polarization both on scattering amplitude and scattering polarization.So agroup of polarimetric scattering statistical data in given incident conditions is acquired and processed based on polarimetric coordinate warped,and preferential statistic curves of chaff cloud aiming at incident wave polarization form are also achieved through building a instantaneous polarized scattering mode of noncoherent chaff cloud in radar sight direction.Numerical simulation results show that the processed polarization states almost totally distribute on horizontal polarimetric area and chaff cloud has statistic preferential characteristics when incident polarization is at a minor angle of pitch of radar.Conclusions can be regarded as primary optimizing projects for anti-chaff using polarimetric information and provide the theoretical base for the polarization filtering.

关 键 词：箔条云 极化散射 极化选择 极态密度 数值仿真 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]