Title :
A fast converging fractionally spaced equaliser
Author :
Mohamad, Hafizal ; Weiss, Stephan ; Rupp, Markus ; Hanzo, Lajos
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
We present subband adaptive structures that can counteract the slow convergence which is imposed on the feed-forward part of a fractionally spaced equaliser by the spectral dynamics of the oversampled channel output. While the prewhitening of the subband approach is therefore beneficial to the feed-forward part, additionally operating the feedback part in subbands results in a more balanced and faster convergence, which is demonstrated in simulations.
Keywords :
adaptive equalisers; channel bank filters; computational complexity; convergence of numerical methods; feedback; feedforward; least mean squares methods; computer simulations; convergence; feed-forward; feedback; filter banks; fractionally spaced equaliser; oversampled channel output; prewhitening; spectral dynamics; subband adaptive structures; Adaptive filters; Band pass filters; Convergence; Feedforward systems; Filter bank; Finite impulse response filter; Frequency; Low pass filters; Prototypes; Signal processing algorithms;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987731
