Title :
Continuous wavelet analysis as an aid in the representation and interpretation of electrogastrographic signals
Author :
Qiao, Wenwei ; Sun, Hun H. ; Chey, William Y. ; Lee, K.Y.
Author_Institution :
Biomed. Eng. & Sci. Inst., Drexel Univ., Philadelphia, PA, USA
Abstract :
The authors introduce the continuous wavelet transform (CWT) method of time-frequency analysis to the processing of electrogastrographic (EGG) signals. Both the amplitude and frequency of the gastric slow waves vary with time, and the low and high frequency components which are related with the gastric contraction are detected from the recording of EGG signals. The results show that CWT method is appropriate for the measurement of the slow wave frequency and the detection of spike events
Keywords :
bioelectric potentials; medical signal processing; time-frequency analysis; wavelet transforms; continuous wavelet analysis; continuous wavelet transform method; electrogastrographic signals; gastric slow waves; high frequency components; low frequency components; signal interpretation; signal representation; slow wave frequency measurement; spike events detection; time-frequency analysis; Continuous wavelet transforms; Fourier transforms; Signal analysis; Signal processing; Signal resolution; Stomach; Sun; Time frequency analysis; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Biomedical Engineering Conference, 1996., Proceedings of the 1996 Fifteenth Southern
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-3131-1
DOI :
10.1109/SBEC.1996.493133
