Title :
Adaptive LMS transversal filters with controlled length
Author :
Wesolowski, Krzysztof ; Zhao, C.M. ; Rupprecht, W.
Author_Institution :
Inst. of Commun. Eng., Kaiserslautern Univ., Germany
fDate :
6/1/1992 12:00:00 AM
Abstract :
Dynamic control of the filter length during initial adaptation for the adaptive LMS transversal filter is proposed. Theoretical analysis of the influence of the filter length on the convergence speed and steady-state error is presented for the channel estimator and the channel equaliser. Simulation results performed for the channel estimation and equalisation of a telephone channel show that a significant gain in the convergence speed can be achieved over that for the constant length adaptive filter
Keywords :
adaptive filters; digital filters; equalisers; filtering and prediction theory; least squares approximations; telecommunication channels; telephony; adaptive LMS transversal filter; channel equaliser; channel estimation; channel estimator; controlled length; convergence speed; dynamic control; filter length; simulation results; steady-state error; telephone channel;
Journal_Title :
Radar and Signal Processing, IEE Proceedings F
