대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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Speed Estimation of a Mobile Station Using the Undecimated Discrete Wavelet Transform

  • Lee, Chang-Soo (Department of Electrical Engineering, Hanyang University) ;
  • Song, Hun-Guen (Advanced Telecom. Research Laboratory, LG Eletronics) ;
  • Yoo, Kyung-Yul (Department of Electrical Engineering, Hanyang University)
  • 발행 : 2001.09.01
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초록

This paper introduces a new technique for estimating the speed of a mobile station in a wireless system. The proposed method is based on the feature extraction of the received signal envelope. The undecimated discrete wavelet transform via lifting captures local minimum points of the received signal, which is used for the speed estimation. This technique requires neither knowledge of the average received power of the nonstationary signal nor adaptation of a temporal observation window, in contrast to other speed estimators given in the literature. Simulations show that the proposed speed estimator tracks the variable speed of the mobile station.

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