eldo_user

Setting Up An Analysis
Transient Noise Analysis
Figure 6-7. PSD of a White Noise Signal Generated with Random Pulses
Figure 6-7 shows that the Power Spectral Density of a noise source generated with random
pulses has an almost white spectrum (So) located between 0 and FMAX. In fact, it has a sinc
shape: So.sinc 2 (2 × FMAX).
The same kind of method is used to generate colored noise sources. A colored noise source is
obtained from a sum of “sinc-shape” sources. For instance a flicker noise source is a sum of
sinc-shape sources whose amplitudes and cut-off frequencies are determined such that the PSD
of the resulting source fits between FMIN_FLICKER and FMAX with the theoretical PSD, as
shown in Figure 6-8, Figure 6-9 and Figure 6-10.
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Eldo® User's Manual, 15.3