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On an Iterative Method for Direction of Arrival Estimation using Multiple Frequencies

Andersson, Fredrik and Carlsson, Marcus and Tourneret, Jean-Yves and Wendt, Herwig On an Iterative Method for Direction of Arrival Estimation using Multiple Frequencies. (2013) In: IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing - CAMSAP 2013, 15 December 2013 - 18 December 2013 (Saint-Martin, France).

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Official URL: http://dx.doi.org/10.1109/CAMSAP.2013.6714074

Abstract

We develop a method for the estimation of the location of sources from measurements at multiple frequencies, including wideband measurements, recorded by a linear array of sensors. We employ interpolation matrices to address unequal sampling at different frequencies and make use of the Kronecker theorem to cast the nonlinear least squares problem associated with direction of arrival estimation into an optimization problem in the space of sequences generating Hankel matrices of fixed rank.We then obtain approximate solutions to this problem using the alternating direction method of multipliers. The resulting algorithm is simple and easy to implement. We provide numerical simulations that illustrate its excellent practical performance, significantly outperforming subspace-based methods both at low and high signal-to-noise ratio.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6714074
HAL Id:hal-01150346
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Lund University (SWEDEN)
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Deposited By: IRIT IRIT
Deposited On:05 May 2015 11:22

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