Wavelet transform with a SAW convolver for sensor application
- 19 November 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 143-146
- https://doi.org/10.1109/ultsym.1995.495557
Abstract
To get the sensor information from an individually adressed SAW sensor, the use of coded ID-tag type SAW sensors is combined with the tool of Wavelet transform, a kind of correlative signal processing. The function of SAW sensors (ID-tag type) is obser- ved as a scaling of time and shape respectively. The time scaling factor is equal to the mechanical exten- sion of the substrate of a sensor for temperature, etc. This scaling factor is evaluated by calculating the Wavelet transform. The fundamental concept, ma- thematical simulations, numerical estimations and finally an overview of the implemented SAW sensor system using the Wavelet transform processed within a SAW convolver are shown. Preliminary results are presented.Keywords
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