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Proceedings Paper

Use of discrete wavelet transformation for tin dioxide gas sensor data processing
Author(s): Libor Gajdosik
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Paper Abstract

Discrete wavelet transformation (DWT) is mostly used for image processing and data compression. This paper shows that DWT may be of good use at one-dimension data processing. With certain conditions met, compared to discrete Fourier transformation (DFT) or discrete cosine transformation (DCT), transformed data provide less coefficients fit for further use. These properties are demonstrated on the data obtained from a tin dioxide gas-based sensors TGS 813 and TGS 822. Organic liquid vapors (acetone, ethanol, hexane) mixed with air were used at the tests.

Paper Details

Date Published: 7 April 2004
PDF: 4 pages
Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); doi: 10.1117/12.560771
Show Author Affiliations
Libor Gajdosik, Technical Univ. of Ostrava (Czech Republic)

Published in SPIE Proceedings Vol. 5445:
Microwave and Optical Technology 2003
Jaromir Pistora; Kamil Postava; Miroslav Hrabovsky; Banmali S. Rawat, Editor(s)

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