If I have the following power spectral density of the quantization error can I tell that quantization noise is approximately white? Can you please provide some justification?

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  • 1
    $\begingroup$ I think white noise has a flat power spectral density $\endgroup$
    – HforHesham
    Commented Mar 23, 2014 at 20:38
  • $\begingroup$ Can we consider this to be approximately white noise then? $\endgroup$
    – Mona Jalal
    Commented Mar 23, 2014 at 20:54
  • $\begingroup$ see this question dsp.stackexchange.com/questions/7678/… $\endgroup$
    – HforHesham
    Commented Mar 23, 2014 at 21:00
  • $\begingroup$ Is the power in decibels or linear units? $\endgroup$
    – Phonon
    Commented Mar 23, 2014 at 21:23

1 Answer 1


It depends on your band-width of interest. If your band-width of interest is very very small than the bandwidth of quantization-noise then you may say that noise is white.


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