On the design of Farrow interpolator for OFDM receivers with asynchronous IF sampling

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

4 Scopus citations

Abstract

In an OFDM receiver with traditional superheterodyne radio-frequency (RF) front-end, the analog IF output signal is sampled at an IF sampling rate adhered to bandpass sampling theorem. A digital front-end which incorporates spectral shifting and sampling rate conversion (SRC) is then required to convert the digital IF signal to a complex baseband signal at a baseband sampling specified by the OFDM system. The SRC ratio must be arbitrary ratio when the IF sampling rate is asynchronous to the time base of the transmitter. In this paper, we discuss the design of Farrow Interpolator for arbitrary ratio SRC in the digital front-end specifically for OFDM receivers.

Original languageEnglish
Title of host publication2009 4th International Conference on Communications and Networking in China, CHINACOM 2009
Pages407-412
Number of pages6
DOIs
StatePublished - 2009
Event2009 4th International Conference on Communications and Networking in China, CHINACOM 2009 - Xian, China
Duration: 26 Aug 200928 Aug 2009

Publication series

Name2009 4th International Conference on Communications and Networking in China, CHINACOM 2009

Conference

Conference2009 4th International Conference on Communications and Networking in China, CHINACOM 2009
Country/TerritoryChina
CityXian
Period26/08/0928/08/09

Keywords

  • Asynchronous IF sampling
  • Digital front-end
  • Farrow interpolator
  • OFDM

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