Variable LMS algorithms using the time constant concept

  • Authors:

  • Y. K. Won;R. -H. Park;J. H. Park;B. -U. Lee

  • Affiliations:

  • Dept. of Electr. Eng., Sogang Univ., Seoul;-;-;-

  • Venue:
  • IEEE Transactions on Consumer Electronics
  • Year:
  • 1994

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Abstract

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