Hi With phase data on ADEV, you are pretty much always *under-sampling* the data. As you go to longer tau’s you do not do any bandwidth fiddling. The sample rate drops and drops, but the bandwidth stays the same.
Bob > On Feb 21, 2020, at 4:04 PM, Chris Caudle via time-nuts > <[email protected]> wrote: > > On Fri, February 21, 2020 2:27 pm, Bob kb8tq via time-nuts wrote: >> Which is why downsample is probably a better term since it does not >> involve fiddling bandwidth. > > I would expect that you would still have to meet Shannon-Nyquist criteria > and low-pass filter before reducing the sampling rate. > I don't have a firm grasp on the mathematics of how this translates into > the final ADEV values, but I can't imagine that aliases are going to > improve the quality of the data. > > -- > Chris Caudle > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
