数据采集与处理2017，Vol.32Issue(2)：258-265,8.DOI:10.16337/j.1004-9037.2017.02.005
相干信号波达方向估计技术综述
Review for Coherent DOA Estimation Technique
摘要
Abstract
The received signals of array are coherent because of the reflection and refraction in the multipath propagation.The presence of coherent signals leads to the rank loss of signal covariance matrix,which results in the invalidity of conventional high-resolution direction of arrival(DOA) estimation methods.Therefore a variety of algorithms have been presented to solve this problem,which recover the rank of covariance matrix by utilizing the special property of steering vector.Recently,there has been a growing interest in deriving new algorithms that can reduce the loss of array aperture and increase the number of resolvable signals as well as the accuracy of DOA estimation.In this paper,the yield of coherent signals and their effect on DOA estimation are introduced,and the data models are established.Then,the coherent DOA estimation algorithms are presented class by class depending on their decorrelation approaches.Finally,the future research directions are prospected.关键词
波达方向估计/相干信号/多径传播Key words
estimation of direction-of-arrival/coherent signal/multipath propagation分类
信息技术与安全科学引用本文复制引用
叶中付,罗大为,韦进强,徐旭..相干信号波达方向估计技术综述[J].数据采集与处理,2017,32(2):258-265,8.基金项目
国家自然科学基金(61671418)资助项目 （61671418）
中央高校基本科研业务费专项资金资助项目 （）
中国科学技术大学预研项目资助项目. （）
