The Journal of the Acoustical Society of Korea

한국음향학회 (The Acoustical Society of Korea)
권호 표지

잔여 주파수 옵셋이 적응 등화기의 성능에 미치는 영향

Effect of Residual Frequency Offsets on the Performance of Adaptive Equalizers

  • Kim, Young-Wha (Hanyang University, Graduate school of Electronics) ;
  • Cho, Sung-Ho (Hanyang University, Graduate school of Electronics)
  • 발행 : 2004.12.01
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초록

This paper has interest in the effect of a fine frequency offset, defined in ITU-T G.225, to the training performance of an adaptive equalizer. This paper uses Hilbert filter in configuring a transmission system model in order to let it get a frequency offset. Also additive white Gaussian noise and band-limited filter are considered. The signal received from the above transmission system applies to an adaptive equalizer with LMS algorithm, and its training procedures are investigated. As a result, we could find that even small fine frequency offset can severely deteriorate training performance of adaptive algorithm.

키워드

참고문헌

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  2. Young W. Kim, et al, 'Method for detecting fine frequency deviation,'United States PATENT 5,452,320, SeP. 1995
  3. ITU-T Recommendation G.225, Intemational analogue cairier systems,General characteristics common to all analogue carrier transmissionsystems, Blue book, Fascicle Ⅲ.2, ITU, Nov. 1993
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