Title :
Robustness to fractionally-spaced equalizer length using the constant modulus criterion
Author :
Endres, T.J. ; Anderson, B.D.O. ; Johnson, C.R., Jr. ; Green, M.
Author_Institution :
Sarnoff Digital Commun., Newtown, PA, USA
fDate :
2/1/1999 12:00:00 AM
Abstract :
This article studies robustness properties of the constant modulus (CM) criterion and the constant modulus algorithm (CMA) to the suboptimal but practical situation where the number of fractionally-spaced equalizer coefficients is less than what is needed to remove all intersymbol interference (ISI). Hence, there necessarily exists an error in the equalized signal. Relationships between CM and mean squared error cost functions are established
Keywords :
adaptive equalisers; interference suppression; intersymbol interference; mean square error methods; ISI removal; adaptive equalizer; coefficients; constant modulus algorithm; constant modulus criterion; cost functions; fractionally-spaced equalizer length; intersymbol interference; mean squared error; robustness properties; Adaptive equalizers; Adaptive filters; Communication systems; Cost function; Intersymbol interference; Quadrature amplitude modulation; Robustness; Signal processing; Signal processing algorithms; Stochastic processes;
Journal_Title :
Signal Processing, IEEE Transactions on
