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Sensors 2018, 18(12), 4320; https://doi.org/10.3390/s18124320

Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array

1
School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China
2
Key Laboratory of Marine Environmental Monitoring and Information Processing, Ministry of Industry and Information Technology, Harbin 150001, China
3
Science and Technology on Electronic Information Control Laboratory, Chengdu 610036, China
4
College of Information Engineering, Shenzhen University, Shenzhen 518060, China
*
Author to whom correspondence should be addressed.
Received: 27 November 2018 / Revised: 30 November 2018 / Accepted: 4 December 2018 / Published: 7 December 2018
(This article belongs to the Special Issue Recent Advances in Array Processing for Wireless Applications)
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Abstract

This paper addresses the direction-of-arrival (DOA) estimation problem using a uniform rectangular array with electromagnetic vector-sensors in correlated/coherent signal environments. The polarization information is separated from the steering matrix to decorrelate the signals. By developing a tensorial structured received measurements of the array, we propose a tensor-based eigenvector DOA estimation method. Then we apply the forward-backward averaging to the tensor since it obeys the centro-Hermitian structure. In addition, a tensor-based polarization parameters estimation method is presented. The proposed algorithms are superior to the state-of-the-art algorithms in terms of estimation accuracy of coherent signals while only demand a modest computation burden comparing with the latter ones. Simulation results are given to demonstrate the effectiveness of the proposed methods under different scenarios. View Full-Text
Keywords: direction-of-arrival estimation; electromagnetic vector-sensor array; tensor approach; coherent signals direction-of-arrival estimation; electromagnetic vector-sensor array; tensor approach; coherent signals
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Cao, M.-Y.; Mao, X.; Long, X.; Huang, L. Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array. Sensors 2018, 18, 4320.

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