Detail publikačního výsledku

Self-Orthogonalizing Adaptive Filter and its Application to Echo Cancellation

Vladimir Malenovsky, Ing.

Originální název

Self-Orthogonalizing Adaptive Filter and its Application to Echo Cancellation

Anglický název

Self-Orthogonalizing Adaptive Filter and its Application to Echo Cancellation

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

In the recent decades developers of telecommunication systems have adopted NLMS (Normalized Least/Mean Square), a simple but efficient adaptive algortihm, as a preferred method for noise cancellation. This article discusses an algorithm named SOBAF (Self Orthogonalizing Block Adaptive Filter), which has an advantage over the conventional NLMS in that it first "whitens" input speech sample before applying them to the basic mean-square estimator. By doing so, the adaptive process should exhibit an improved convergence rate and a lower level of residual error. In order to decrease the computational complexity of the "whitening" operation a DCT transform is utilized which, in turn, is calculated recursively.

Anglický abstrakt

In the recent decades developers of telecommunication systems have adopted NLMS (Normalized Least/Mean Square), a simple but efficient adaptive algortihm, as a preferred method for noise cancellation. This article discusses an algorithm named SOBAF (Self Orthogonalizing Block Adaptive Filter), which has an advantage over the conventional NLMS in that it first "whitens" input speech sample before applying them to the basic mean-square estimator. By doing so, the adaptive process should exhibit an improved convergence rate and a lower level of residual error. In order to decrease the computational complexity of the "whitening" operation a DCT transform is utilized which, in turn, is calculated recursively.

Klíčová slova

adaptive, algortihm, speech, echo, processing, orthogonalization, SOBAF

Klíčová slova v angličtině

adaptive, algortihm, speech, echo, processing, orthogonalization, SOBAF

Autoři

Vladimir Malenovsky, Ing.

Vydáno

12.11.2005

Nakladatel

VUT Brno

Místo

Brno

ISBN

80-214-3008-7

Kniha

Sborník příspěvků na IEEE Workshop Vršov 2005

Edice

1

Svazek

2

Číslo

1

Strany od

12

Strany počet

4

BibTex

@inproceedings{BUT15146,
  author="Vladimír {Malenovský}",
  title="Self-Orthogonalizing Adaptive Filter and its Application to Echo Cancellation",
  booktitle="Sborník příspěvků na IEEE Workshop Vršov 2005",
  year="2005",
  series="1",
  volume="2",
  number="1",
  pages="4",
  publisher="VUT Brno",
  address="Brno",
  isbn="80-214-3008-7"
}