• DocumentCode
    944933
  • Title

    Spread-spectrum synchronizer using a SAW convolver and recirculation loop

  • Author

    Morgan, David P. ; Hannah, John M. ; Collins, Jeffrey H.

  • Author_Institution
    University of Edinburgh, Edinburgh, Scotland, U.K.
  • Volume
    64
  • Issue
    5
  • fYear
    1976
  • fDate
    5/1/1976 12:00:00 AM
  • Firstpage
    751
  • Lastpage
    753
  • Abstract
    Segments of a long biphase coded waveform were correlated in a degenerate acoustic convolver, and the resulting correlation peaks were summed in a SAW recirculation loop. Using a 9 Mchip/s wave-form, 730 µs of waveform was correlated, giving an experimental SNR increase of 40 dB. This system can be used to reduce substantially the acquisition time for synchronization of a direct sequence spread-spectrum communication receiver.
  • Keywords
    Acoustic noise; Acoustic waves; Bandwidth; Convolvers; Delay lines; Matched filters; Signal to noise ratio; Spread spectrum communication; Surface acoustic waves; Timing;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1976.10204
  • Filename
    1454473
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=944933