海面上方运动目标和人造箔条云干扰的多普勒频移仿真  

Simulation of Doppler frequency shift for a moving targetand chaff cloud above the oceanic surface

作　　者：丁晓松[1] 金亚秋[1] 

机构地区：[1]复旦大学波散射和遥感信息国家教育部重点实验室,上海200433

出　　处：《电波科学学报》2004年第4期431-437,共7页Chinese Journal of Radio Science

基　　金：国家重点基础研究规划 (2 0 0 1CB30 94 0 5 ) ;国家自然科学基金 (6 0 170 0 9)资助项目

摘　　要：计算空间取向偶极子箔条的极化散射 ,利用矢量辐射传输方程的一阶迭代解得到箔条云的双站散射截面。建立箔条云的扩散和箔条取向变化的模型 ,研究了半主动雷达制导过程中 ,导弹接收到的目标回波、海面杂波和人造箔条云干扰杂波的多普勒频移 。Polarized scattering from a randomly oriented chaff dipole is calculated. By using the first-order solution of vector radiative transfer equation, bistatic scattering coefficient of a layer of chaff-dipoles cloud is obtained. Based on the diffusing model of randomly chaff-dipoles cloud, the Doppler frequency shifts from the radar echoes of a moving target with clutters of oceanic surfaces and chaff cloud are numerically simulated and are analyzed for application of the semi-active guided radar system.

关 键 词：海面杂波 箔条云杂波 半偶极子 多普勒频移 

分 类 号：TN972.41[电子电信—信号与信息处理]