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Adaptive VSS blind equalizers

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2 Author(s)
Fang-Biau Ueng ; Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Su, Yu.T.

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.

Published in:

Signal Processing Letters, IEEE  (Volume:4 ,  Issue: 4 )