Novel sparse adaptive algorithm in the Haar transform domain

  • Authors:

  • S. D. Blunt;K. C. Ho

  • Affiliations:

  • Dept. of Electr. Eng., Missouri Univ., Columbia, MO, USA;-

  • Venue:
  • ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 01
  • Year:
  • 2000

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Abstract

This paper considers the problem of adaptive identification of a sparse system such as in echo cancellation application. A sparse system has a small number of coefficients that are different from zero. We propose the use of the Haar transform to locate non-zero coefficients such that only the non-zero coefficients will need to be adapted. The consequence is an increase in convergence speed and a decrease in computation. The performance of the proposed algorithm is evaluated through simulations.