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Design >> Analog Design >> Is flicker noise a statistical stationary process?
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Message started by greatqs on Nov 9^th, 2006, 5:08am

Title: Is flicker noise a statistical stationary process?
Post by greatqs on Nov 9^th, 2006, 5:08am

I'm really interested in the mathematical definition of flicker noise.
Suppose flicker noise is a random process.
question is whether it is a stationary process, wide-sense stationary process or non-stationary process?
thanks a lot.

Title: Re: Is flicker noise a statistical stationary proc
Post by vivkr on Nov 10^th, 2006, 3:49am

Hi,

I would say that it is nonstationary. However, as my knowledge of random processes is now rusty, here
is a link which might help you:

http://www.astro.virginia.edu/class/bradley/astr535/noise.pdf

Regards
Vivek

Title: Re: Is flicker noise a statistical stationary proc
Post by Paul Geraedts on Nov 30^th, 2006, 3:51pm

In his papers, Alper Demir models 1/f noise as being a stationary process and introduces a lower cut-off frequency to reach a finite value at DC.

If you have can access IEEEXplore, you also could have a look at
M.S. Keshner, "1/f noise", proc. IEEE, vol. 70, p. 212, Mar. 1982

Cheers,

Paul