Cardioelectric characteristic extracting process based on evolutive wavelet wiener deconvolution
An extraction method and deconvolution technology, applied in the field of biomedical engineering
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[0023] Before the present invention is further described in detail, the existing knowledge such as main characteristics of ECG waveform, mathematical morphology theory, properties of discrete wavelet transform of ECG signal, and evolutionary wavelet domain Wiener deconvolution technology is introduced.
[0024] The main features of the ECG waveform
[0025] The ECG signal is one of the most important physiological signals. It reflects the activity of the heart. It is mainly composed of three parts: P wave represents the first deflection of atrial depolarization; QRS complex wave is generated by ventricular depolarization; ventricular repolarization T waves are produced. Because these waves have special shapes in the time domain and frequency domain, abnormal conditions of the heart can be found by observing the ECG signal. figure 1 The basic components of electrocardiogram and the definitions of various electrocardiographic characteristics are given. The purpose of the prese...
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