5.3 Methods for Analysis and Processing of Discrete Biosignals

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Fig. 5.22: Spectrum of the signal according to Figure 5.21 shows the real part (top) and the imaginary

part (bottom). The spectrum is periodic with the sampling frequency of 12 kHz and has three spec-

tral lines within one period, i.e. in the first period at m = 0, f = 0 kHz, m = 1, f = 4 kHz and m = 2,

f = 8 kHz.

time t / µs

Fig. 5.23: Filtered sinusoidal signal with DC component, cf. Figure 5.21.