A Modified MUSIC Algorithm for Direction of Arrival Estimation in the Presence of Antenna Array Manifold Mismatch

被引：50

作者：

Kintz, Andrew L. ^{[1
]}

Gupta, Inder J. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Elect & Comp, Engn ElectroSci Lab, Columbus, OH 43212 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 11期

关键词：

Antenna manifold mismatch; direction of arrival (DOA) estimation; multiple signal classification (MUSIC); MAXIMUM-LIKELIHOOD LOCALIZATION; RESOLUTION THRESHOLD; PERFORMANCE ANALYSIS; BEAMSPACE; SIGNALS; ESPRIT; ERRORS;

D O I：

10.1109/TAP.2016.2600700

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：

We introduce a modified multiple signal classification (MUSIC) algorithm to estimate the directions of arrival (DOAs) of multiple radio frequency signals. We specifically consider an antenna array with an imperfectly calibrated array response. The modified MUSIC algorithm estimates the DOA of each signal individually after attempting to null the other signals that are present. We compare the new approach to the conventional MUSIC algorithm in simulations, and show that the new approach leads to improved performance. The new approach converges quickly and produces DOA estimates with smaller mean error and standard deviation than MUSIC over a range of incident signal separations. We recommend our approach for systems with challenging antenna placements, a time varying host platform, and limited processing capabilities.

引用

页码：4836 / 4847

页数：12

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