대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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QAM 복조용 삼중 모드 채널 등화 알고리즘

Triple-mode Blind Equalization Algorithm for QAM Demodulation

  • 위정화 (명지대학교 정보제어공학과) ;
  • 황유모 (명지대학교 정보제어공학과)
  • Wui, Jung-Hwa (Dept. of Information Control Eng. Myong-Ji University) ;
  • Hwang, Hu-Mor (Dept. of Information Control Eng. Myong-Ji University)
  • 발행 : 1999.07.19
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초록

We propose a robust blind equalization algorithm based on dual-mode algorithm which incorporates a stop-and-go technique. The constant modulus algorithm(CMA) exhibits very slow convergence when applied to QAM signals and generates phase error. We show that convergence properties of the dual-mode MCMA can be significantly improved by simply adding a stop-and-go technique. To speed up the convergence rate, the TMA-MCMA operates in triple mode that is based on the dual-mode of the MCMA incorporated with the tap-updating control modes of the SGA.

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