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. 2019 Aug 5;19(15):3427. doi: 10.3390/s19153427

Figure 5.

Figure 5

Detection and analysis of wrist pulse acquired by the capacitive sensor. (a) The recorded wrist pulse. (b) The wrist pulse after denoising and drift removal. (c) The 5th level wavelet high-frequency coefficient decomposed from the recorded wrist pulse signal (d5). (d) The enlarged denoising wrist pulse.