Variable LMS algorithms using the time constant concept

Variable LMS algorithms using the time constant concept

Two variable least mean square (LMS) algorithms using the simple time constant concept, variable step size LMS (VS-LMS) and variable length LMS (VL-LMS) algorithms, are proposed. In proposed variable LMS algorithms, the time constant, by which the step size is changed in the VS-LMS algorithm and the...

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Veröffentlicht in:IEEE transactions on consumer electronics 1994-08, Vol.40 (3), p.655-661
Hauptverfasser: Won, Y.K., Park, R.-H., Park, J.H., Lee, B.-U.
Format: Artikel
Sprache:eng
Schlagworte:
Adaptive filters
Algorithm design and analysis
Chaos
Convergence
Filtering algorithms
HDTV
Least squares approximation
Performance analysis
Stability
Steady-state
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Zusammenfassung:Two variable least mean square (LMS) algorithms using the simple time constant concept, variable step size LMS (VS-LMS) and variable length LMS (VL-LMS) algorithms, are proposed. In proposed variable LMS algorithms, the time constant, by which the step size is changed in the VS-LMS algorithm and the filter length is varied in the VL-LMS algorithm, is used as a measure of the error signal convergence. Computer simulation results show that proposed algorithms are simpler but show better performance than conventional variable LMS algorithms.< >
ISSN:0098-3063
1558-4127
DOI:10.1109/30.320854