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  •   Open Research
  • AUT Faculties
  • Faculty of Design and Creative Technologies (Te Ara Auaha)
  • School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau
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Wavelet Transform Smoothing Filters for Metal Oxide Gas Sensor Signal Cleaning

Bassey, E; Whalley, J; Sallis, P; Prasad, K
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Conference contribution (478.5Kb)
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http://hdl.handle.net/10292/13395
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Abstract
This paper reports on a series of experiments to evaluate the methods for feature extraction and denoising the digital signal from thin film zinc oxide-tin dioxide composite gas sensor devices. The aim was to find a method that not only cleaned the signal but also maintained the shape, precision and resolution of the signal. It was found that the Savitzky–Golay smoothing filter method gave the best, smoothed and cleaned, approximation of the sensor response regardless of the thin film composition, target gas concentration or operating temperature.
Keywords
Denoising; Gas sensor devices; Signal processing
Date
September 2, 2014
Source
In 8th International Conference on Sensing Technology (ICST 2014), Liverpool, UK (Vol. 2014, pp. 538-542).
Item Type
Conference Contribution
Publisher
Elsevier
Publisher's Version
https://www.scopus.com/record/display.uri?eid=2-s2.0-84978525032&origin=inward&txGid=b0571243a82621a1cb302a9feb64b0f6
Rights Statement
Copyright © 2014 Elsevier Ltd. All rights reserved. This is the author’s version of a work that was accepted for publication in (see Citation). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version was published in (see Citation). The original publication is available at (see Publisher's Version).

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