ECHO CANCELLER WITH REDUCED ARITHMETIC PRECISION.

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The paper introduces a new echo canceller: the controlled gain echo canceller (CGEC) which uses an adaptive gain control at the output of the classical echo canceller (CEC). A feedback loop permits approximate regulation of the front-edge (CEC) output power at a nominal level, independently of the echo and far-end signal levels. By this means, the precision required for adaptation is reduced to a minimum value. The analysis of adaptation, convergence, residual echo power, and computational complexity is given for the CGEC and compared to the similar quantities in a CEC; computer simulation results are presented.
Publisher
Institute of Electrical and Electronics Engineers
Issue Date
1984-03
Language
English
Citation

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, v.2, no.2, pp.304 - 313

ISSN
0733-8716
URI
http://hdl.handle.net/10203/66053
Appears in Collection
EE-Journal Papers(저널논문)
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