The design of adaptive no-uniform filter banks

  • Authors:

  • Liu Weidong;Zhang Shen

  • Affiliations:

  • China University of Mining and Technology, School of Information and Electric Engineering, Xuzhou, China;China University of Mining and Technology, School of Information and Electric Engineering, Xuzhou, China

  • Venue:
  • WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
  • Year:
  • 2009

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Abstract

This paper proposed an efficient filter bank structure for adaptive noise cancellation algorithm, which is non-uniform sub-band decomposition algorithm based on the reference signal . In order to consider the signal approximation reconstruction, the design has adopted a prototype filter additional pre-emphasis filter method, and adopt uniform sub-band decomposition algorithm to carry out the idea of non-uniform sub-band decomposition. The algorithm is simple and easy to achieve, at the same time, as a result of sub-band decomposition depends on the distribution of the noise characteristics, so certain sub-band does not require the use of filtering methods, which not only significantly reduce the computation, but also improve the performance of adaptive filter convergence.