New clock generation techniques for synchronous sampling of 16-QAM RF signals

Naoki Matsumura, Daisuke Maeda, Masahiro Muraguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Direct conversion digital receivers require precise sample timing in order to synchronize them with the carrier waves of received RF signals. This means a carrier regeneration technique for modulated RF signals is required. Unfortunately, carrier regeneration is considered to be very difficult to apply in the case of 64-QAM signals. To address this problem, we have developed a sampling clock generator composed of Field-programmable Gate Array (FPGA) devices that makes use of three new key clock generation techniques. Experiments conducted on the generator demonstrate the validity of these techniques for synchronous sampling of 16-QAM RF signals.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC 2011
Pages1434-1437
Number of pages4
Publication statusPublished - 1 Dec 2011
EventAsia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia
Duration: 5 Dec 20118 Dec 2011

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Conference

ConferenceAsia-Pacific Microwave Conference, APMC 2011
CountryAustralia
CityMelbourne, VIC
Period5/12/118/12/11

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Keywords

  • Demodulation
  • Frequency locked loops
  • Quadrature amplitude modulation
  • Sampling methods

Cite this

Matsumura, N., Maeda, D., & Muraguchi, M. (2011). New clock generation techniques for synchronous sampling of 16-QAM RF signals. In Asia-Pacific Microwave Conference Proceedings, APMC 2011 (pp. 1434-1437). [6174031] (Asia-Pacific Microwave Conference Proceedings, APMC).