Application of theory of wavelets for analysis of EKG signal

• Autorzy: Ciepłucha M. , Jóźwik K.
• Konferencja: International Student Symposium on Mechanics, Microtechnology and Microcomputers "STUSYM`2000" (XIII ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

Application of Wavelet Theory for detection of P-wave, reduction of floating izoelectric line, monitoring of changes in EKG signal and compression of EKG signal is presented. Signals of biologic origin, like EKG signal, are wideband signals and methods such as Short Time Fourier Transform (STFT), utilizing narrowband basis functions, are not suitable for representation of these signals. Wavelet Theory, which provides for wideband representation of signals, uses a special analysis window, called mother wavelet, to analyze local spectral information of the EKG signal. The mother wavelet is either compressed or dilated to give multiresolution signal representation. Results of application of Continues Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT) shows good efficiency in P-wave detection in noisy EKG signal and benefits of multiresolution analysis in eliminating unwanted frequency components, monitoring of EKG changes and reduction of redundant samples in e EKG signal.

Słowa kluczowe

EN

EKG signal; short-time Fourier transform; STFT; discrete wavelet transform; DWT; Continues Wavelet Transform; CWT; mother wavelet

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2000
• Tom: Vol. 4, nr 1
• Strony: 31--38
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Ciepłucha M.

• Technical University of Lodz Institute of Turbomachinery Division of Automatics and Medical Apparatus 219/223 Wolczanska St. 93-005 Lodz, Poland Tel.:[phone]

autor

Jóźwik K.

• Technical University of Lodz Institute of Turbomachinery Division of Automatics and Medical Apparatus 219/223 Wolczanska St. 93-005 Lodz, Poland Tel.:[phone]