Focused Widely Linear Beamforming

作     者：Yougen Xu Junfeng Liu Zhiwen Liu 

作者机构：School of Information and ElectronicsBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Journal of Beijing Institute of Technology》 (北京理工大学学报（英文版）)

年 卷 期：2019年第28卷第4期

页      面：744-749页

核心收录：

学科分类：0810[工学-信息与通信工程] 0711[理学-系统科学] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China(61331019 61490691) 

主　　题：array signal processing adaptive beamforming direction-of-arrival estimation noncircularity wideband 

摘      要：The problem addressed in this paper concerns the extension of widely linear beamforming to the wideband case,developing a wide-focused linear beamformer for the extraction of a wideband second-order(SO)noncircular signal-of-interest(SOI)contaminated by uncorrelated interferences and *** the proposed beamformer,the beamforming array observation is first focused to adopt a standard linear minimum variance distortionless response(MVDR)*** augmented SOI steering vector then is obtained by estimating the SOI noncircularity parameter with the newly proposed oblique projection with an augmented sparse representation *** covariance matrix of the virtual interference,true interference and noise is further reconstructed using the newly presented complementary spatial spectrum *** wideband widely linear spatial filtering is finally realized via MVDR like *** performance of the proposed beamformer is verified by simulation.