Title
Recursive least squares constant modulus algorithm for blind adaptive array
Abstract
We consider the problem of blind adaptive signal separation with an antenna array, based on the constant modulus (CM) criterion. An approximation to the CM cost function is proposed, which allows the use of the recursive least squares (RLS) optimization technique. A novel RLS constant modulus algorithm (RLS-CMA) is derived, where the modulus power of the array output can take on arbitrary positive real values (i.e., fractional values allowed). Simulations are performed to compare the performance of the proposed RLS-CMA to other well-known algorithms for blind adaptive beamforming. Results indicate that the RLS-CMA has a significantly faster convergence rate and better tracking ability.
Year
DOI
Venue
2004
10.1109/TSP.2004.826167
IEEE Transactions on Signal Processing
Keywords
Field
DocType
blind adaptive array,blind adaptive beamforming,constant modulus algorithm,cm cost function,blind adaptive signal separation,constant modulus,novel rls,antenna array,array output,proposed rls-cma,squares constant modulus algorithm,modulus power,least squares approximation,blind source separation,cost function,adaptive beamforming,convergence,wireless communication,convergence rate,adaptive signal processing
Least squares,Mathematical optimization,Adaptive beamformer,Antenna array,Algorithm,Adaptive filter,Rate of convergence,Adaptive algorithm,Blind signal separation,Recursive least squares filter,Mathematics
Journal
Volume
Issue
ISSN
52
5
1053-587X
Citations 
PageRank 
References 
40
2.14
9
Authors
4
Name
Order
Citations
PageRank
Yuxin Chen1402.14
Tho Le-Ngoc22210237.14
B. Champagne3523.43
Changjiang Xu41208.33