Is it correct to assume that if you collect data every 10 ms for
10 seconds (1000 data points in total), you could actually split
that data set into 100 sets of data at 1 seconds for 10 seconds
(10 data points in each set), which would have the same statistical
quality (I am sure caveats would apply) as a single data set of
1000 data points collected at one second interval over a total
period of 1,000 seconds?
Didier KO4BB
If you look every 10 ms and collect data for 10 seconds you will
be able to make a log-log ADEV plot for points from 0.01 s to 2
seconds, no more, no less.
In order to plot ADEV points less than tau 0.01 s you need to
re-measure using an instrument that gives data faster than one
every 10 ms.
In order to plot ADEV points more than tau 2 seconds you simply
need to let the measurement run much longer than 10 seconds.
For example, if you measure for 4 or 5 hours then you can plot
ADEV out to 1 hour.
In other words, the leftmost point on any log-log ADEV plot is
determined by how *fast* you can collect data and the rightmost
point is determined by how *long* you collect data.
/tvb
_______________________________________________
time-nuts mailing list -- [email protected]
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
