한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)
- 제21권4호
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- Pages.876-883
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- 1996
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- 1226-4717(pISSN)
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- 2287-3880(eISSN)
적응 보상기를 채용한 적응 순환 방향제거기
An adaptive IIR echo canceller with adaptive compensator
초록
Adaptive FIR filters are widely used in the echo canceller. But, most of practical systems have the transfer function composed of poles and zeros. In that case, adaptive IIR filters may be more efficient rather than FIR fiters. In this paper, a recently developed C-HARF algorithm is used to implement an adaptive IIR echo canceller. The proposed convergence of the algorithm make it attractive for this application. Extensive computer simulations show that C-HARF algorithm performs better than the NLMS algorithm after convergence, although C-HARF algorithm converges more slowly.
키워드