@Bob and @Poul-Henning Thanks for the input guys! This was my understanding
too, which was the confusion.
@Anders Wallin Thank you, this is exactly
what I was looking for. You're actually the one that introduced me to these
SDR measurements.
So in essence we are reducing the sampled bandwidth (si
Hi Simon, you can play around with different averaging ideas with e.g.
allantools (or some other adev-library). The script for the attached image
is here: https://gist.github.com/aewallin/a10966ac50846e264ca3ee97f2e0d832
(the script also plots time-series, PSDs, and histograms, which might
illustra
In message <4d24832f-8127-411a-8566-973ac6f5d...@n1k.org>, Bob kb8tq writes:
>In general the way you go from 1 to 10 to 100 seconds is to decimate
>( = throw away) the data to get a phase record at the tau you are after.
The problem with that, is that decimation may _also_ throw away noi
Hi
In general the way you go from 1 to 10 to 100 seconds is to decimate
( = throw away) the data to get a phase record at the tau you are after.
Any averaging that you do will filter out some noise. Since ADEV is a
measure of noise, getting rid of it is not a real good idea. You can indeed
make y
Hi all,
I have a fairly newbie question on averaging of phase data, prior to ADEV.
In a paper by Sherman and Jordens (https://arxiv.org/pdf/1605.03505.pdf) on
oscillator metrology using SDR (Ettus N210), for long term measurements (1
tau up) the group estimates an average phase to reduce the data
