[time-nuts] Question about noisetypes and ADEV

Anders Wallin anders.e.e.wallin at gmail.com
Sun Oct 28 08:14:26 EDT 2018


I made a revised figure with a few improvements:
- the PSDs now cross at 1Hz
- the theoretical ADEV/MDEV pre-factors are now explicitly stated
http://www.anderswallin.net/2018/10/noise-colours-again/
source:
https://github.com/aewallin/colorednoise/blob/master/example_noise_slopes2.py

I forget where the MDEV-coefficients come from - maybe the Dawkins et al.
paper? (worth adding to wikipedia also?)
Also for flicker-PM there seems to be (slightly) different versions of the
ADEV pre-factor in different references.

Anders


On Sat, Oct 27, 2018 at 10:08 AM Anders Wallin <anders.e.e.wallin at gmail.com>
wrote:

>
> Is this some elemental effect of integration (sqrt(n) or some such), or am
>> I seeing the effects of bandwidth and/or bias-functions or other
>> esoterica?
>>
>
> FWIW the python "colorednoise" (aka. Kasdin-Walter) repo has a figure:
> https://github.com/aewallin/colorednoise
> and code that generates the figure:
> https://github.com/aewallin/colorednoise/blob/master/example_noise_slopes.py
>


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