Wideband Direction of Arrival Estimation with Linear Array: Analysis and Closed-Form Formulae

被引：0
|
作者：
Wen Fei [1 ,2 ]
Wan Qun [1 ]
He Guibo [2 ]
Zhang Peng [2 ]
Liu Yipeng [3 ]
机构：
[1] Univ Elect Sci & Technol China, Dept Elect Engn, Chengdu 611731, Peoples R China
[2] Air Force Engn Univ, Air Control & Nav Inst, Xian 710000, Peoples R China
[3] Katholieke Univ Leuven, IBBT Future, Dept Elect Engn, B-3001 Heverlee, Belgium
来源：
CHINESE JOURNAL OF ELECTRONICS | 2013年 / 22卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Array signal processing; Direction-of-arrival (DOA); Time delay estimation; Wideband signal; DOA ESTIMATION; LOCALIZATION; DELAY;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To estimate the Direction-of-arrival (DOA) of a far-field wideband source using a linear array, the Time-difference-of-arrival (TDOA) based and Steered-response power (SRP) algorithms are of the most useful. In this paper, for white Gaussian signal and noise, the estimation variances of both the methods and the Cramer-Rao lower bound (CRLB) are derived in closed-form for a linear array. Meanwhile, a Gauss-Markov (GM) procedure is introduced to achieve optimal conversion of the estimated delay vectors for the TDOA based estimator. Moreover, a generalized SRP estimator is proposed for the generalized case with nonuniform SNR.
引用
收藏
页码：779 / 783
页数：5
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