岸-舰双基地高频地波雷达一阶海杂波特性分析  

Characteristic of first-order sea clutter for coast-ship bistatic HF-SWR

作　　者：刘春波[1] 陈伯孝[1] 陈多芳[1] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《电波科学学报》2007年第4期599-603,共5页Chinese Journal of Radio Science

基　　金：国防预研基金资助项目(No.40106020203)

摘　　要：岸-舰双基地地波雷达由于收发分置以及接收平台运动,导致一阶海杂波谱不同程度的展宽。推导了该体制雷达的一阶海杂波Bragg频率的计算公式,分析了一阶海杂波谱的展宽机理,并通过实测数据对理论分析结果进行了验证;最后分析讨论了不同双基地参数条件下一阶海杂波Bragg频率的空时分布特点。The spreading spectrum of first-order sea clutter resulting from bistatic geometry and moving receiver platform leads to the difficulty in detecting the target submerged in it for a coast-ship bistatic high-frequency surface-wave radar （HF- SWR） application. In this paper, the formula of the Bragg frequency of first-order sea clutter is presented derived from the system configuration; and the broadening mechanism of flrst-order sea clutter is analyzed, and the theoretic analysis is exam- ined with the experimental results. Finally, the space-time distributions （i. e. angle-Doppler contour） for different bistatic geometry are discussed.

关 键 词：双基地雷达 高频地波雷达 海杂波 空时分布 

分 类 号：TN958.93[电子电信—信号与信息处理]