Improved ECG-Derived Respiration Using Empirical Wavelet Transform and Kernel Principal Component Analysis

<div>ECG signal of 10 s in time and frequency domains: (a) ECG signal and the corresponding Fourier spectrum, in which the red dotted line in the spectrum graph is the boundary of different modes, and the green boxes represent the high-frequency noise and (b) the five modes of EWT in time and frequency domains.</div>

Computational Intelligence and Neuroscience

fig2

Figure 2

Figure 2: Improved ECG-Derived Respiration Using Empirical Wavelet Transform and Kernel Principal Component Analysis 