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Low-Complexity Constant Modulus Algorithms for Blind Beamforming Based on Symmetrically Distributed Arrays

Zhang, L, Liu, W and Langley, RJ (2011) Low-Complexity Constant Modulus Algorithms for Blind Beamforming Based on Symmetrically Distributed Arrays In: IEEE Statistical Signal Processing Workshop (SSP), 2011, 2011-06-28 - 2011-06-30, Nice, France.

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Abstract

A class of low-complexity constant modulus (CM) algorithms with real-valued coefficients is proposed based on symmetrically distributed arrays (SDAs) by introducing a preprocessing transformation matrix. It is derived from the beamformer with a minimum mean square error (MSE) and three representative CMAs are studied including the basic CMA, least-squares CMA (LSCMA) and the recursive-least-squares CMA (RLSCMA). With the preprocessing matrix, the computational complexity of the overall system is reduced significantly; moreover, a faster convergence speed is achieved and given the same stepsize, the system arrives at a lower MSE. Simulation results are provided to verify the effectiveness of the proposed approach.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Electronic Engineering
Authors :
NameEmailORCID
Zhang, Llei.zhang@surrey.ac.ukUNSPECIFIED
Liu, WUNSPECIFIEDUNSPECIFIED
Langley, RJUNSPECIFIEDUNSPECIFIED
Date : September 2011
Identification Number : 10.1109/SSP.2011.5967711
Copyright Disclaimer : © 2011 IEEE
Contributors :
ContributionNameEmailORCID
publisherIEEE, UNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords : Array signal processing, Computational complexity, Signal processing algorithms, Optimized production technology, Convergence, Antennas
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:58
Last Modified : 18 May 2017 12:54
URI: http://epubs.surrey.ac.uk/id/eprint/841015

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