应用于洋流探测的改进MUSIC方法  

Improved MUSIC method for detection of currents

作　　者：安志娟[1] 苏洪涛[1] 保铮[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室

出　　处：《西安电子科技大学学报》2006年第1期138-141,共4页Journal of Xidian University

基　　金：国家部委预研跨行业基金资助项目(51407020801DZ0119);国家部委十五预研基金资助项目(413070301)

摘　　要：对传统的MUSIC方法进行修正估计洋流方位,即在应用MUSIC方法之前,将阵列的协方差矩阵Toep litz化,理论分析和仿真表明这样可有效地减小信号之间相关性的影响,从而大大提高谱估计的质量.通过对实测数据的处理表明修正的MUSIC方法可较好地进行洋流方位探测.In this paper the conventional MUSIC method is modified to estimate the direction of arrival （DOA） of ocean currents, i. e. , performing Toeplitzization on the array covafiance matrix before implementing the MUSIC method. Theoretical analysis and simulation show that this process can reduce the effect of correlation between signals, and can therefore improve the performance of estimation remarkably. Finally by analyzing the measured data, it is shown that the improved method can detect the currents more effectively.

关 键 词：洋流 相关性 MUSIC Toeplitzization 

分 类 号：TN958.53[电子电信—信号与信息处理]