VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM

Felix Albu; Constantin Paleologu; Jacob Benesty; Yuriy V. Zakharov

VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM

Felix Albu, Constantin Paleologu, Jacob Benesty, Yuriy V. Zakharov

Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A new affine projection (AP) algorithm based on dichotomous coordinate descent (DCD) iterations has been recently proposed for acoustic echo cancellation (AEC). It uses a constant step size parameter and, therefore, has to compromise between fast convergence and tracking on the one hand, and low misadjustment and robustness to the presence and variations of a near-end signal on the other hand. In this paper we propose a variable step-size (VSS) version of the DCD-AP algorithm (VSS-DCD-AP) that does not require any a priori information about the acoustic environment. It is shown that the new algorithm is robust against near-end signal variations, including double-talk (DT).

Original language	English
Title of host publication	EUROCON 2009: INTERNATIONAL IEEE CONFERENCE DEVOTED TO THE 150 ANNIVERSARY OF ALEXANDER S. POPOV
Place of Publication	NEW YORK
Publisher	IEEE
Pages	1364-1369
Number of pages	6
Volume	1-4
ISBN (Print)	978-1-4244-3967-6
Publication status	Published - 2009

Keywords

dichotomous coordinate descent algorithm
affine projection algorithm
acoustic echo cancellation
double-talk
ITERATIONS

Cite this

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title = "VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM",

abstract = "A new affine projection (AP) algorithm based on dichotomous coordinate descent (DCD) iterations has been recently proposed for acoustic echo cancellation (AEC). It uses a constant step size parameter and, therefore, has to compromise between fast convergence and tracking on the one hand, and low misadjustment and robustness to the presence and variations of a near-end signal on the other hand. In this paper we propose a variable step-size (VSS) version of the DCD-AP algorithm (VSS-DCD-AP) that does not require any a priori information about the acoustic environment. It is shown that the new algorithm is robust against near-end signal variations, including double-talk (DT).",

keywords = "dichotomous coordinate descent algorithm, affine projection algorithm, acoustic echo cancellation, double-talk, ITERATIONS",

author = "Felix Albu and Constantin Paleologu and Jacob Benesty and Zakharov, {Yuriy V.}",

year = "2009",

language = "English",

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volume = "1-4",

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publisher = "IEEE",

address = "United States",

}

VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM. / Albu, Felix; Paleologu, Constantin; Benesty, Jacob et al.

EUROCON 2009: INTERNATIONAL IEEE CONFERENCE DEVOTED TO THE 150 ANNIVERSARY OF ALEXANDER S. POPOV. Vol. 1-4 NEW YORK : IEEE, 2009. p. 1364-1369.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM

AU - Albu, Felix

AU - Paleologu, Constantin

AU - Benesty, Jacob

AU - Zakharov, Yuriy V.

PY - 2009

Y1 - 2009

N2 - A new affine projection (AP) algorithm based on dichotomous coordinate descent (DCD) iterations has been recently proposed for acoustic echo cancellation (AEC). It uses a constant step size parameter and, therefore, has to compromise between fast convergence and tracking on the one hand, and low misadjustment and robustness to the presence and variations of a near-end signal on the other hand. In this paper we propose a variable step-size (VSS) version of the DCD-AP algorithm (VSS-DCD-AP) that does not require any a priori information about the acoustic environment. It is shown that the new algorithm is robust against near-end signal variations, including double-talk (DT).

AB - A new affine projection (AP) algorithm based on dichotomous coordinate descent (DCD) iterations has been recently proposed for acoustic echo cancellation (AEC). It uses a constant step size parameter and, therefore, has to compromise between fast convergence and tracking on the one hand, and low misadjustment and robustness to the presence and variations of a near-end signal on the other hand. In this paper we propose a variable step-size (VSS) version of the DCD-AP algorithm (VSS-DCD-AP) that does not require any a priori information about the acoustic environment. It is shown that the new algorithm is robust against near-end signal variations, including double-talk (DT).

KW - dichotomous coordinate descent algorithm

KW - affine projection algorithm

KW - acoustic echo cancellation

KW - double-talk

KW - ITERATIONS

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M3 - Conference contribution

SN - 978-1-4244-3967-6

VL - 1-4

SP - 1364

EP - 1369

BT - EUROCON 2009: INTERNATIONAL IEEE CONFERENCE DEVOTED TO THE 150 ANNIVERSARY OF ALEXANDER S. POPOV

PB - IEEE

CY - NEW YORK

ER -

VARIABLE STEP SIZE DICHOTOMOUS COORDINATE DESCENT AFFINE PROJECTION ALGORITHM

Abstract

Keywords

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