Original title: Efficient implementation of Stockwell Transform for real-time embedded processing of physiologic signals
Authors: Holmes, D. ; Pinto, S.C. ; Felton, Ch. ; Smítal, L. ; Leinveber, P. ; Jurák, Pavel ; Gilbert, B. ; Haider, C.
Document type: Papers
Conference/Event: EMBC 2017. Annual International Conference of the IEEE Engineering in Medicine and Biology Society /39./, Jeju Island (KR), 20170711
Year: 2017
Language: eng
Abstract: Physiologic monitoring enables scientists and physicians to study both normal and pathologic signals of the body. While wearable technologies are available today, many of these technologies are limited to data collection only. Embedded processors have minimal computational capabilities. We propose an efficient implementation of the Stockwell Transform which can enable real-time time-frequency analysis of biological signals in a microcontroller. The method is built upon the fact that the Stockwell Transform can be implemented as a compact filter bank with pre-computed filter taps. Additionally, due to the long tails of the gaussian windowing function, low amplitude filter taps can be removed. The method was implemented on a TI MSP430 processor. Simulated ECG data was fed into the processor to demonstrate performance and evaluate computational efficiency.
Keywords: biomedical monitoring; electrocardiography; real-time systems; time-frequency analysis
Host item entry: Engineering in Medicine and Biology Society (EMBC 2017). 39th Annual International Conference of the IEEE, ISBN 978-1-5090-2810-8

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279705

Permalink: http://www.nusl.cz/ntk/nusl-373421


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