# Does phase of a signal (very low frequency, 0-100Hz) change due to pink noise?

One might experience pink noise when dealing with low frequency signals (0-100Hz). Curious to know whether pink noise has an effect on phase of the signal specially in lowest frequencies 0-10Hz.

• What do you mean by phase? The noise will change the signal so there won't be a 'phase shift' in the regular sense of $f(t) \rightarrow f(t+t_0)$ – xXx_69_SWAG_69_xXx Feb 16 at 2:18
• Perhaps someone who knows more can give a concrete answer, but generically there is nothing that protects the phase of your signal's spectrum. All noise will cause noise in both the power spectrum and the phase plot. – Richard Myers Feb 16 at 2:29