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An evaluation of smoothing filters for gas sensor signal cleaning

  • Enobong Bassey
  • , Jacqueline Whalley
  • , Philip Sallis
    • Auckland University of Technology

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

    Abstract

    This paper explores signal response and methods for extracting the desired digital signal, from gas sensor arrays, while maintaining the shape and resolution of that signal. A comparative evaluation of Savitzky–Golay smoothing, moving average, local regression and robust local regression filters for cleaning signals obtained from gas sensor devices during the pre-processing phase is provided. It was found that the Savitzky–Golay smoothing filtering method provided the best approximation of the sensor response.
    Original languageEnglish
    Title of host publicationThe Fourth International Conference on Advanced Communications and Computation
    Subtitle of host publicationINFOCOMP 2014, Paris, France
    EditorsC. Rückemann, M. Pankowska
    Pages19-23
    Number of pages5
    Publication statusPublished - 2014

    Keywords

    • Denoising
    • Gas sensor arrays
    • Signal processing

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