Title :
New normalized constant modulus algorithms with relaxation
Author :
O. Tanrikulu;A.G. Constantinides;J.A. Chambers
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
A new normalized constant modulus algorithm is proposed that has a more desirable error performance surface (EPS) than the existing constant modulus blind equalization algorithms. We show that for an autoregressive channel, a well-known class of undesirable local solutions (ULSs) does not exist. The EPSs and convergence of the parameters are shown for a number of channels for which well-known algorithms are known to possess ULSs.
Keywords :
"Blind equalizers","Adaptive equalizers","Lagrangian functions","Baseband","Filtering algorithms","Convergence","Adaptive filters","Biomedical imaging","Differential equations"
Journal_Title :
IEEE Signal Processing Letters
