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Design and implementation of signal acquisition system for laser doppler velocimeter

  • Beihang University

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

Abstract

To meet the requirements of signal collection in multidimensional laser Doppler velocimeter(LDV), a multichannel signal acquisition system is designed based on DSP and FPGA technologies. In addition, in order to extract the frequencies of signals in multidimensional LDV system, fast Fourier transform approach combined with energy Centro baric rectifying algorithm are applied. The structure and realization of multichannel signal acquisition system are detailedly introduced. The FPGA technology is been used for high-speed signal gathering while the DSP technology is used for real-time signal processing. Besides the algorithm of Doppler frequency extraction is explained. The experiment results of signal detection indicate the design in this work can realize the high-speed acquisition of three-channel signals in LDV system and achieve high precision in the extraction of Doppler frequency.

Original languageEnglish
Title of host publicationProceedings - 3rd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2013
PublisherIEEE Computer Society
Pages1237-1241
Number of pages5
ISBN (Print)9780769551227
DOIs
StatePublished - 2013
Event3rd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2013 - Shenyang, Liaoning, China
Duration: 21 Sep 201323 Sep 2013

Publication series

NameProceedings - 3rd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2013

Conference

Conference3rd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2013
Country/TerritoryChina
CityShenyang, Liaoning
Period21/09/1323/09/13

Keywords

  • DSP
  • Doppler speed measurement
  • FPGA
  • frequency extraction
  • multichannel high-speed acquisition

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