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电信和无线电工程
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v66.i13.90
pages 1221-1233

Dynamic Change of the Number of Reconstructible Weight Factors of the Adaptive Filter in the Echo Cancellation Problem

A. N. Tarakanov
A. L. Moseev
S. V. Uldinovich

ABSTRACT

A new adaptive algorithm, created on the basis of a normalized least-square method (NLSM), is presented. Behavior of an echo canceller based on the new algorithm, depending on the duration of pulse response (PR) of the echo path and algorithm parameters, is studied. The limit value of PR echo path duration, at which the designed echo canceller meets the recommendations of the International Telecommunication Unit (ITU) G. 165, is determined. The results of modeling, demonstrating decrease of computational load of the new algorithm compared to a regular NLSM are presented.


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