High-order extended coprime array design for direction of arrival estimation

作     者：SHI Junpeng WEN Fangqing LIU Yongxiang LIU Tianpeng LIU Zhen SHI Junpeng;WEN Fangqing;LIU Yongxiang;LIU Tianpeng;LIU Zhen

作者机构：College of Electronic ScienceNational University of Defense TechnologyChangsha 410073China College of Electronic CountermeasureNational University of Defense TechnologyHefei 230037China College of Computer and Information TechnologyChina Three Gorges UniversityYichang 443002China 

基　　金：supported by the National Natural Science Foundation of China(62071476,62022091,61801488,61921001) the China Postdoctoral Science Foundation(2021T140788,2020M683728) the Science and Technology Innovation Program of Hunan Province(2020RC2041) the Research Program of National University of Defense Technology(ZK19-10,ZK20-33) 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2021年第32卷第4期

页      码：748-755页

摘      要：Nonuniform linear arrays,such as coprime array and nested array,have received great attentions because of the increased degrees of freedom(DOFs)and weakened mutual *** this paper,inspired by the existing coprime array,we propose a high-order extended coprime array(HoECA)for improved direction of arrival(DOA)*** first derive the closed-form expressions for the range of consecutive ***,by changing the inter-element spacing of a uniform linear array(ULA),three cases are proposed and *** is indicated that the HoECA can obtain the largest number of consecutive lags when the spacing takes the maximum ***,by comparing it with the other sparse arrays,the optimized HoECA enjoys a larger number of consecutive lags with mitigating mutual *** results are shown to evaluate the superiority of HoECA over the others in terms of DOF,mutual coupling leakage and estimation accuracy.

主 题 词：high-order extended coprime array(HoECA) direction of arrival(DOA) degree of freedom(DOF) mutual coupling 

学科分类：0711[理学-心理学类] 07[理学] 08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 

核心收录：

D　O　I：10.23919/JSEE.2021.000064

馆 藏 号：203105044...