New timing extraction method and data interpolation for block demodulation

Yutaka Miyake, Masafumi Hagiwara, Masao Nakagawa

Research output: Contribution to journalConference article

Abstract

The conventional timing extraction method for block demodulation requires a large amount of calculation, a high-speed A/D (analog/digital) converter and a large memory size. A method that overcomes these disadvantages is proposed. It calculates accurate frequency and phase of symbol timing from only two extracted spectra by using a modified discrete Fourier transform (DFT). Thus it requires less calculation than the conventional method. In addition, interpolation of stored data is used to reduce the sampling rate. As a result the method can use a slower A/D converter and has a reduced memory requirement. The lower limit of the number of samples per symbol can be reduced to about 2.5.

Original languageEnglish
Pages (from-to)1223-1226
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2
Publication statusPublished - 1989 Dec 1
Event1989 International Conference on Acoustics, Speech, and Signal Processing - Glasgow, Scotland
Duration: 1989 May 231989 May 26

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ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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