Super-Resolution DOA Estimation for Wideband Signals Using Non-Uniform Linear Arrays With No Focusing Matrix

被引：13

作者：

Jirhandeh, Milad Javadzadeh ^{[1
]}

Hezaveh, Hoomaan ^{[1
]}

Kahaei, Mohammad Hossein ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Sch Elect Engn, Tehran 1684613114, Iran

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2022年 / 11卷 / 03期

关键词：

Direction-of-arrival estimation; Wideband; Estimation; Narrowband; Focusing; Superresolution; Sensor arrays; Gridless sparse; direction of arrival; coherent estimation; wideband sources; atomic norm; prolate spheroidal wave functions; TIME;

D O I：

10.1109/LWC.2021.3139568

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We focus on developing an effective Direction Of Arrival (DOA) estimation method for wideband sources based on the super-resolution concept. In this letter, we represent the data model of a wideband DOA estimation problem in a new form. Then, using this model, we propose an atomic norm minimization problem that leads to an accurate wideband DOA estimation method with no need for any focusing matrices. Moreover, this method requires no initial estimate and can be implemented by non-uniform linear arrays. Numerical simulations show that in comparison to some well-known techniques, the proposed method generates outstanding accuracy and higher robustness to noise. The effectiveness of the method is also verified in presence of close adjacent sources.

引用

页码：641 / 644

页数：4

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