Performance of a class of adaptive data-driven echo cancellers

Author

Im, Gi Hong ; Un, Chang Kwan ; Lee, Jae Chon

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

37

Issue

12

fYear

1989

fDate

12/1/1989 12:00:00 AM

Firstpage

1254

Lastpage

1263

Abstract

A study is made of the performance of a class of adaptive data-driven echo cancellers (DDECs). The authors first investigate the interrelationship in a unified framework among the system equations of various data-driven echo cancellers. As a result, they obtain a new DDEC algorithm that consists of only one real-valued adaptive structure. The authors analyze and compare the convergence behavior of DDECs. They analyze their complexities when the least-mean-square (LMS) algorithm and the frequency-domain block LMS algorithm are used for adjusting the canceller weights. The results show that the echo canceller structure realized in the frequency domain has advantages in convergence rate and in implementation complexity as compared to existing DDEC structures

Keywords

echo suppression; signal processing; adaptive data-driven echo cancellers; convergence rate; frequency-domain block LMS algorithm; implementation complexity; least-mean-square; real-valued adaptive structure; signal processing; Algorithm design and analysis; Convergence; Data communication; Echo cancellers; Equations; Frequency domain analysis; Least squares approximation; Passband; Sampling methods; Transmitters;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.44197

Filename

44197