Optical Doppler tomography based on a field programmable gate array

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Abstract

We report the design of and results obtained by using a field programmable gate array (FPGA) to digitally process optical Doppler tomography signals. The processor fits into the analog signal path in an existing optical coherence tomography setup. We demonstrate both Doppler frequency and envelope extraction using the Hilbert transform, all in a single FPGA. An FPGA implementation has certain advantages over general purpose digital signal processor (DSP) due to the fact that the processing elements operate in parallel as opposed to the DSP. which is primarily a sequential processor.
Original languageEnglish
JournalBiomedical Signal Processing and Control
Volume3
Issue number1
Pages (from-to)102-106
ISSN1746-8094
DOIs
Publication statusPublished - 2008

Keywords

  • Flow
  • Signal processing
  • Optical coherence tomography
  • Doppler

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