摘要
为了解决 OSMAR2 0 0 0以小天线阵实现中远距离的海洋表面流探测 ,同时实现高的角分辨率的问题 ,提出了 OSMAR2 0 0 0基于 MUSIC的超分辨率海洋表面流算法 .该算法首先通过预处理从海洋回波中分离包含海流信息的一阶回波 ,然后针对其中可分辨的每一个 Doppler频移 (对应海洋表面径向流速 )上的信号 ,采用MU SIC算法求其多个存在方位 .阐述了 MU SIC算法应用于高频地波雷达海洋表面流遥感的理论基础。
To realize the high angular-resolution ocean surface current mapping as far as 200 km with the compact small aperture antenna array of OSMAR2000,a super resolution ocean surface current algorithm based on MUSIC is developed in this paper. First order sea echo, which contain the information of ocean surface current, is firstly separated from sea echo through prepossessing. MUSIC is then applied to extract the bearings of the signals at every Bragg shift. The theory basis, processing procedure and measurement results of OSMAR2000 are presented in this paper.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2001年第5期601-608,共8页
Journal of Wuhan University:Natural Science Edition
基金
国家 8 63计划资助项目 (863 -818-0 1-0 2 )
