哈尔滨工程大学学报Issue(11)：1327-1331,5.DOI:10.3969/j.issn.1006-7043.201311054
水声阵列信号处理对角减载技术
The technique of diagonal reduction processed with underwater acoustic array signal
摘要
Abstract
A beamforming method based on array signal covariance matrix diagonal reduction is proposed.By esti-mating enough snapshots, a stable covariance matrix of the received signal is obtained.Through the appropriate co-variance matrix diagonal reduction, the array output gain and the multi-target resolving ability can be improved.In this paper, the conventional beamforming ( CBF) and minimum variance distortionless response ( MVDR) beam-former's array gains were deduced and simulated based on diagonal reduction.The relationship between the array gain and reduction coefficient is analyzed and the reduction coefficient range for resolving multiple targets is studied. The results showed that the diagonal reduction method can improve the multi-target resolving ability of MVDR effec-tively.关键词
对角减载/多目标分辨/阵列增益/最小方差无畸变响应/常规波束形成/阵列信号Key words
diagonal reduction/multi-target resolving/array gain/minimum variance distortionless response (MVDR)/conventional beamforming (CBF)/array signal分类
交通工程引用本文复制引用
赵安邦,周彬,宋雪晶,毕雪洁..水声阵列信号处理对角减载技术[J].哈尔滨工程大学学报,2014,(11):1327-1331,5.基金项目
海洋公益性行业科研专项经费资助项目（ gz201005001）；国家自然科学基金青年基金资助项目（51009041）；国家自然科学基金资助项目（11374072，61371171）． （）
