用MUSIC算法解决海杂波背景下相干源探测问题  

The Application of MUSIC Method to Detect the Coherent Sources on the Background of Ocean Clutter

作　　者：康春梅[1] 袁业术[1] 

机构地区：[1]哈尔滨工业大学电子工程技术研究所,黑龙江哈尔滨150001

出　　处：《电子学报》2004年第3期502-504,共3页Acta Electronica Sinica

基　　金：十五重大国防预研基金 (No.0 2 4 1 30 70 30 1 0 5)

摘　　要：强海杂波背景下进行相干源检测是舰载高频地波雷达 (HFSWR)进行海上目标探测面临的一个主要问题 .本文利用对称阵列法对阵列输出信号的协方差矩阵进行了重构 ,以解决相干源引起的降秩问题 ,在此基础上通过对背景噪声的预白化处理来抑制一、二阶海杂波 .MUSIC算法对实录海杂波数据处理结果表明 。Coherent sources detection on the background of strong ocean clutter is a main problem for high-frequency surface wave ship-mounted over-the-horizon radar to detect signals on the surface of the ocean.In this paper,a method of reconstructing the covariance matrix of the array data is presented,and then preprocessing the reconstructed matrix with pre-whitened MUSIC algorithm to get the azimuth information of the coherent sources from the widened first-order spectra.From results of the experiment on the collected data this processing method is effective.

关 键 词：协方差矩阵 相干源探测 预白化处理 海杂波 高频地波雷达 MUSIC算法 

分 类 号：TN959.72[电子电信—信号与信息处理] U665.22[电子电信—信息与通信工程]