Fast Signal Recovery in the Presence of Mutual Coupling Based on New 2-D Direct Data Domain Approach

Autor: Dadashzadeh GR, Bakhshi HR, Azarbar Ali
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: EURASIP Journal on Wireless Communications and Networking, Vol 2011, Iss 1, p 607679 (2011)
Druh dokumentu: article
ISSN: 1687-1472
1687-1499
Popis: The performance of adaptive algorithms, including direct data domain least square, can be significantly degraded in the presence of mutual coupling among array elements. In this paper, a new adaptive algorithm was proposed for the fast recovery of the signal with one snapshot of receiving signals in the presence of mutual coupling, based on the two-dimensional direct data domain least squares (2-D D3LS) for uniform rectangular array (URA). In this method, inverse mutual coupling matrix was not computed. Thus, the computation was reduced and the signal recovery was very fast. Taking mutual coupling into account, a method was derived for estimation of the coupling coefficient which can accurately estimate the coupling coefficient without any auxiliary sensors. Numerical simulations show that recovery of the desired signal is accurate in the presence of mutual coupling.
Databáze: Directory of Open Access Journals
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