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M-ary coded modulation by Butterworth filtering

Publiceringsår: 2003
Språk: Engelska
Sidor: 184-184
Publikation/Tidskrift/Serie: Proc., 2003 IEEE Intern. Symp. on Information Theory, Yokohama
Dokumenttyp: Konferensbidrag
Förlag: Institute of Electrical and Electronics Engineers Inc.


Earlier we have studied the bandwidth and distance of binary codes created by Butterworth lowpass filtering of a pulse stream. Here the work is extended to 4- and 8-ary inputs (16- and 64-ary QAM). Performance reaches into a very narrow-band part of the distance-bandwidth plane. An M-algorithm decoder is tested.



  • Technology and Engineering
  • Infinite impulse response
  • M-algorithm decoder
  • Orthogonal pulse modulation
  • Butterworth filtering
  • Viterbi decoder
  • Nonbinary signaling


2003 IEEE International Symposium on Information Theory
Yokohama, Japan
  • VR
  • Informations- och kommunikationsteori: Kodningsteknik
  • Informations- och kommunikationsteori
  • ISBN: 0-7803-7728-1

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