The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Subband Adaptive Algorithm for Convex Combination of LMS based Transversal Filters

LMS기반 트랜스버설 필터의 컨벡스조합을 위한 부밴드 적응알고리즘

  • Received : 2012.11.06
  • Accepted : 2012.12.06
  • Published : 2013.01.01
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Abstract

Convex combination of two adaptive filters is an efficient method to improve adaptive filter performances. In this paper, a subband convex combination method of two adaptive filters for fast convergence rate in the transient state and low steady state error is presented. The cost function of mixing parameter for a subband convex combination is defined, and from this, the coefficient update equation is derived. Steady state analysis is used to prove the stability of the subband convex combination. Some simulation examples in system identification scenario show the validity of the subband convex combination schemes.

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References

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