TY - GEN
T1 - Low-complexity constant modulus algorithms for blind beamforming based on symmetrically distributed arrays
AU - Zhang, Lei
AU - Liu, Wei
AU - Langley, Richard J.
PY - 2011/7
Y1 - 2011/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=80052199894&partnerID=8YFLogxK
U2 - 10.1109/SSP.2011.5967711
DO - 10.1109/SSP.2011.5967711
M3 - Conference article published in proceeding or book
AN - SCOPUS:80052199894
SN - 9781457705700
T3 - IEEE Workshop on Statistical Signal Processing Proceedings
SP - 385
EP - 388
BT - 2011 IEEE Statistical Signal Processing Workshop, SSP 2011
T2 - 2011 IEEE Statistical Signal Processing Workshop, SSP 2011
Y2 - 28 June 2011 through 30 June 2011
ER -