Efficient pilot carrier acquisition and tracking in detect and avoid signal processing

Sam Reisenfeld*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

For the detect and avoid operation in cognitive radio systems, there is often a requirement to rapidly acquire a pilot carrier in a large frequency uncertainty band. This paper presents a method for rapid pilot carrier acquisition with extremely low computational complexity. A low latency, iterative frequency estimation algorithm is introduced, which accurately determines the pilot carrier frequency and initializes a phase locked loop center frequency. The phase locked loop, with essentially no initial frequency error, is then able to rapidly acquire the pilot signal. Because a narrow band phase locked loop can be used, extremely good phase error tracking performance is achievable with small acquisition time.

Original languageEnglish
Title of host publication2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (Print)9781424481323
DOIs
Publication statusPublished - 2010
Event2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010 - Roma, Italy
Duration: 7 Nov 201010 Nov 2010

Other

Other2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies, ISABEL 2010
CountryItaly
CityRoma
Period7/11/1010/11/10

Keywords

  • Cramer-Rao bound
  • Detect and avoid
  • Digital signal processing
  • Discrete fourier transform
  • Fast fourier transform
  • Frequency estimation
  • Iterative algorithm
  • Phase locked loop

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