The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
권호 표지

Subband Affine Projection Algorithm

부밴드 인접투사 알고리즘

  • 최훈 (충북대학교 전자공학과) ;
  • 배현덕 (충북대학교 전자공학과)
  • Published : 2004.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the subband affine projection algorithm(SAPA). The improved performance of SAPA is achieved by applying the affine projection algorithm to the subband adaptive structure. In this algorithm, the weight updating formula of adaptive filter is simply derived by using the orthogonal quadrature filter(OQF) as an analysis filter bank for subband filtering. The derived SAPA has the fast convergence speed and small computational complexity. The efficiency of the proposed algorithm for colored input signal is evaluated through some experiments.

본 논문은 부밴드 인접투사 알고리즘 (SAPA)을 소개한다. SAPA의 개선된 성능은 인접투사 알고리즘에 부밴드 구조를 적용함으로써 가능하다. 본 알고리즘에서 적응 필터의 계수 갱신식은 부밴드 필터링을 위한 분해 필터뱅크로서 OQF (Orthogonal Quadrature Filter)를 사용함으로써 간단하게 유도된다. 유도된 SAPA는 빠른 수렴속도와 적은 계산량을 갖는다. 유색 입력신호에 대한 제안한 알고리즘의 효과를 실험을 통해 평가하였다.

Keywords

References

  1. Adaptive Filter theory, (4th Ed.) S.Haykin
  2. Adaptive Signal Processing B.Widrow;S.D.Stearms
  3. Multirate System and Filter Banks P.P.Vaidyanathan
  4. Proc. IEEE ICASSP Analysis and design of multirate systems for cancellation of acoustical echoes W.Kellermann
  5. IEEE Trans. on Signal Proc. v.40 no.8 Adaptive Filtering in Subbands with Critical Sampling:Analysis, Evperiments, and Application to Acoustic Echo Cancellation A. Gilloire;M.Vettetli
  6. IEEE Trans. on Signal Proc. v.45 no.3 A New Approach to Subband Adaptive Filtering S.S.Pradhan;V.U.reddy
  7. Electron. Commun. Japan. v.67-A no.5 An adaptive Filtering Algorithm using an Orthogonal Projection to an Affine Subspace and Its Properties K.Ozeki;T.Umeda
  8. Acoustic Signal Processing for Telecommunication S.L.Gay;J.Benesty
  9. Proc. IEEE ICASSP 1995 v.5 The fast affine projection algorithm S.L.Gay;S.Tavathia
  10. IEEE Trans., Speech and Audio Processing v.7 A Block Exact Fast Affine Projection Algorithm M.Tanaka;S.Makino;J.Kojima
  11. Proc. IEEE ICASSP 1995 Fast projection algorithm and its step size control M.Tanaka;Y.Kameda;S.Makino;J.Kojima
  12. IEEE Trans. on Signal Proc. v.48 no.4 Convergence Behavior of the Affine Projection Aigorithm S.G.Sankaran;A.A.beex
  13. Wavelets and Filter Banks G.Strang;T.Nguyen
  14. An Introduction to Optimization E.K.P.Chong;S.H.Zak
  15. Signal Processing Proc. WCCC-ICSP 2000, Int. Conf. v.3 Adaptive Beamforming using Affine Projection Algorithms Y.R.Zheng;R.a.Goubran