Title :
DOA-detection guided NLMS adaptive array
Author :
Homer, John ; Kootsookos, Peter J. ; Selvaraju, Vigneswaran
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
In various adaptive array applications, the directions of arrival (DOAs) of the desired user signal are sparsely separated. As such, the desired beam-pattern has a sparse structure. We propose an NLMS based adaptive algorithm which exploits this sparse DOA structure and provides significantly improved convergence and tracking capabilities.
Keywords :
adaptive antenna arrays; antenna radiation patterns; direction-of-arrival estimation; least mean squares methods; DOA-detection guided NLMS adaptive array; beam-pattern; direction of arrival; normalized least mean square method; sparse separation; Arrays; Computational efficiency; Convergence; Cost function; Least squares approximations; Standards; Vectors;
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
