Graduate School and Research Center in Digital Sciences

On AoA estimation in the presence of mutual coupling: Algorithms and performance analysis

Bazzi, Ahmad; Slock, Dirk TM

Research Report RR-16-326

This paper presents two novel methods for Angle-of-Arrival (AoA) estimation in the presence of unknown mutual coupling. We mainly focus on the first method, where we show that this method could estimate AoAs of multiple sources when more mutual coupling parameters are included in the model, compared to existing methods. Furthermore, we derive a closed form Mean-Squared-Error (MSE) expression of the proposed method and compare it to the MSE of MUSIC with known coupling parameters. In addition, the derived MSE expression is also compared to the Cram´er-Rao bound of joint AoA and mutual coupling estimation in the asymptotic regime, i.e. at high signal-to-Noise ratio or large number of antennas. The second method serves as a refinement of the first one. Simulation results have demonstrated the potential of the proposed methods as they enjoy better performance than existing methods. A better description of the paper could be found in the Conclusions section.

Document Bibtex

Title:On AoA estimation in the presence of mutual coupling: Algorithms and performance analysis
Keywords:Angle-of-Arrival estimation, Mutual Coupling, Mean-Squared-Error analysis, MUSIC
Department:Communication systems
Eurecom ref:5044
Copyright: © EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in Research Report RR-16-326 and is available at :
Bibtex: @techreport{EURECOM+5044, year = {2016}, title = {{O}n {A}o{A} estimation in the presence of mutual coupling: {A}lgorithms and performance analysis}, author = {{B}azzi, {A}hmad and {S}lock, {D}irk {TM}}, number = {EURECOM+5044}, month = {11}, institution = {Eurecom}, url = {},, }
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