제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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The New Variable Step-size Algorithm Adaptive Lattice Structure for Echo Cancellation

  • Benjangkaprasert, Chawalit (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering , Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang) ;
  • Sukhumalwong, Sethawuit (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering , Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang) ;
  • Teerasakworakun, Sirirat (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering , Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang) ;
  • Janchitrapongvej, Kanok (Research Center for Communications and Information Technology (ReCCIT), and Department of Information Engineering , Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang)
  • Published : 2003.10.22
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Abstract

Adaptive algorithms are widely used for various applications. One challenging application is an echo canceller in the long distance telephony network. This paper proposes the new variable step-size algorithm for adaptive lattice structure for echo cancellation. The new algorithm is using power of the output signal and the error signal to controlled the step of adaptation process. By this technique, the proposed algorithm is an excellent and effective in good stability. Performance comparison of the proposed algorithm and the other algorithm is made through simulation results.

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