And just to clarify the subject matter -- the TICC data output contains 12 decimal places, i.e., 1 ps precision. The actual resolution is about 55 ps, so the last digit is pure noise, and the penultimate digit should really be either 5 or 0.
To eliminate the distraction of the noise, It's under consideration to zero the last decimal place, and *maybe* to round to 50 ps. I think the last digit is a no-brainer, but am more hesitant about the rounding. Coming soon to a git near you... On Jan 10, 2019, 7:13 AM, at 7:13 AM, Adrian Godwin <[email protected]> wrote: >Truncate, to me at least, means to shorten : ie to remove some >precision by >rounding off lower bits. > >I agree that the source of the word 'decimate' is unclear, but I think, >within the field of DSP, it has a reasonably precise definition whether >or >not that corresponds with wider usage or derivation. > > > >On Thu, Jan 10, 2019 at 12:02 PM Peter Vince <[email protected]> >wrote: > >> In his comment below, Mark has used the word "decimate". There is >much >> debate about what this word means (presently, and/or in the past), >but >> common explanations refer back to Roman times when they apparently >killed >> one person in ten as a punishment, and similarly "tithes" - or taxes, >where >> one in ten was taken. Now OK, you can argue this until the cows come >home, >> but the result is that the meaning isn't crystal clear, and >particularly on >> a technical forum where precision is paramount, and the entire reason >we >> are here, I believe accuracy and clarity of expression is also >important. >> In this instance, I believe "truncate" would be a better word. >> >> </rant> :-) >> >> Regards, >> >> Peter Vince >> >> On Wed, 9 Jan 2019 at 23:56, Mark Sims <[email protected]> wrote: >> > ... >> > And as far as decimating the TICC output values in firmware... >please >> don't. Let the user decimate the values if they want to. >> _______________________________________________ >> 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. _______________________________________________ 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.
