Experimental Assessment of the Coarray Concept for DoA Estimation in Wireless Communications

Journal article (2018)

Authors

Jiachen Wang Katholieke Universiteit Leuven
Hantao Xu Katholieke Universiteit Leuven
G.J.T. Leus Signal Processing Systems - EEMCS
Guy A.E. Vandenbosch Katholieke Universiteit Leuven
Research Group
Signal Processing Systems (EEMCS) (TU Delft)
Copyright: © 2018 Jiachen Wang, Hantao Xu, G.J.T. Leus, Guy A.E. Vandenbosch
DOI
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https://doi.org/10.1109/TAP.2018.2819824
MUSIC Coarray Coprime Sampling Array Data Measurements Direction of Arrival (DoA) estimation Nested Array Sparse Ruler Array Spatial Smoothing
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Published Date

2018

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Signal Processing Systems

Abstract

The direction of arrival (DoA) estimation performance of three different coarray structures, namely, the nested array, the coprime sampling array, and the sparse ruler array are presented and compared. The coarray concept makes it possible to detect the DoAs of much more sources than the number of physical antennas. Crucial is that for the first time, these coarrays are investigated based on real measurements conducted on a demonstrator platform. Based on the results obtained, the conclusion is clear. The MUSIC algorithm-based coarray concept with spatial smoothing is not suitable for DoA estimation in practical circumstances due to the unavoidable multipath phenomenon.