Electrocardiogram Signal and Linear Time–Frequency Transforms

被引:9
作者
Krishna B.T. [1 ]
机构
[1] Department of Electronics and Communication Engineering, Jawaharlal Nehru Technological University Kakinada, Kakinada, 533003, Andhra Pradesh
关键词
Electrocardiogram; Fractional order; More; Short time Fourier transform; Time–frequency representation; Wavelet transform;
D O I
10.1007/s40031-014-0097-9
中图分类号
学科分类号
摘要
The diagnostic analysis of non-stationary multi component signals such as electrocardiogram (ECG) involves the use of time–frequency transforms. So, the application of time–frequency transforms to an ECG signal is an important problem of research. In this paper, initially, linear transforms like short time Fourier transform, continuous wavelet transforms, s-transform etc. are revisited. Then the application of these transforms to normal and abnormal ECG signals is illustrated. It has been observed that s-transform provides better time and frequency resolution compared to other linear transforms. The fractional Fourier transform provides rotation to the spectrogram representation. © 2014, The Institution of Engineers (India).
引用
收藏
页码:377 / 382
页数:5
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