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. 2015 May 25;15(6):12103–12132. doi: 10.3390/s150612103

Figure 27.

Figure 27

Fourier spectra of the PWM_1.5 signal and Reference signal, calculated in the time intervals t = [40, 65] (a) and t = [70, 170] (b); spectrum of the signal PWM_1.5 (a1) and Reference signal (b1) for t = [25, 45] ps.