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Proceedings Paper

Sparsity-based DOA estimation of coherent and uncorrelated targets using transmit/receive co-prime arrays
Author(s): Elie BouDaher; Fauzia Ahmad; Moeness G. Amin
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Paper Abstract

In this paper, we use transmit/receive co-prime arrays for direction finding of mixed coherent and uncorrelated targets based on the concept of sum coarrays. The sum coarray is defined as the set of pair-wise sums of the position vectors of the elements in the transmit and receive apertures. The data measurements from the transmit/receive co-prime array are used to emulate observations at a virtual array, whose element positions are given by the sum coarray corresponding to the co-prime array. A group sparse reconstruction problem is formulated employing multiple snapshots, where each group corresponding to a specific angle of arrival extends across all the time samples. The number of resolvable targets for the proposed sparsity-based approach is limited by the number of elements in the sum coarray. Supporting simulation results are provided, which validate the effectiveness of the proposed direction finding method.

Paper Details

Date Published: 14 May 2015
PDF: 6 pages
Proc. SPIE 9484, Compressive Sensing IV, 94840E (14 May 2015); doi: 10.1117/12.2177597
Show Author Affiliations
Elie BouDaher, Villanova Univ. (United States)
Fauzia Ahmad, Villanova Univ. (United States)
Moeness G. Amin, Villanova Univ. (United States)


Published in SPIE Proceedings Vol. 9484:
Compressive Sensing IV
Fauzia Ahmad, Editor(s)

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