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

Jiachen Wang, Hantao Xu, Geert J.T. Leus, Guy A.E. Vandenbosch

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
22 Downloads (Pure)


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.

Original languageEnglish
Article number8325503
Pages (from-to)3064-3075
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Issue number6
Publication statusPublished - 2018

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • Coarray
  • Coprime Sampling Array
  • Data Measurements
  • Direction of Arrival (DoA) estimation
  • Nested Array
  • Sparse Ruler Array
  • Spatial Smoothing


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