Title :
Adaptive VSS blind equalizers
Author :
Ueng, Fang-Biau ; Su, Yu.T.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
4/1/1997 12:00:00 AM
Abstract :
It is well known that an adaptive filter with a large step size in the transient period and a small one in the convergence period gives small mean squared steady state error while achieving a fast convergence rate. Based upon this idea, we present two variable step size (VSS) blind equalizers. The first one employs an intersymbol interference (ISI) estimator to control the step size, the second algorithm uses a mean squared error (MSE) estimator to adjust the step size. Both accomplish what has been expected.
Keywords :
adaptive equalisers; adaptive filters; convergence of numerical methods; intersymbol interference; ISI estimator; MSE estimator; adaptive equaliser; adaptive filter; convergence period; fast convergence rate; intersymbol interference; mean squared error estimator; mean squared steady state error; transient period; variable step size blind equalizers; Adaptive filters; Blind equalizers; Convergence; Error correction; Intersymbol interference; Least squares approximation; Robustness; Size control; Steady-state; Variable structure systems;
Journal_Title :
Signal Processing Letters, IEEE
