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A 4×4 logarithmic spike timing encoding scheme for olfactory sensor applications

  • Bin Guo*
  • , Amine Bermak
  • , Maxime Ambard
  • , Dominique Martinez
  • *Corresponding author for this work
  • Hong Kong University of Science and Technology
  • LORIA-INRIA

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

Abstract

This paper presents a 4×4 logarithmic spike-timing encoding scheme used to translate the output of an integrated tin oxide gas sensor array into spike sequence, which is exploited to perform gas recognition. Hydrogen, Ethanol and Carbon monoxide were used to characterize the gas sensor array. The collected data were then used to test the proposed circuit for spike encoding and gas recognition. Simulation results illustrate that a particular analyte gas generates a unique spike pattern with certain spike ordering sequence, which is independent of the gas concentration. This unique spike sequence can thus be used to recognize different gases. In addition, the concentration information can also be extracted from the time-to-the-flrst spike in the sequence making it possible to perform not only gas/odor recognition but quantification as well.

Original languageEnglish
Title of host publication2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3554-3557
Number of pages4
ISBN (Print)1424409209
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States
Duration: 27 May 200730 May 2007

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007
Country/TerritoryUnited States
CityNew Orleans, LA
Period27/05/0730/05/07

Keywords

  • Gas sensor array
  • Logarithmic spike timing
  • Spike sequence
  • Tin oxide

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