[time-nuts] Sample "R" script for ADEV under Linux wanted

Bob Stewart bob at evoria.net
Mon Feb 3 00:34:59 UTC 2014


Hi Azelio,

What I have available to me is a time-stamped, per second, file of DAC values and wrapped phase error (as compared to 1PPS) values.  Is there anything I can do with that?  It's not quite a frequency loop and it's not quite a phase loop.  I figured with a starting point I could learn something about an ADEV and how it applies to my GPSDO.


Bob




>________________________________
> From: Azelio Boriani <azelio.boriani at screen.it>
>To: Bob Stewart <bob at evoria.net>; Discussion of precise time and frequency measurement <time-nuts at febo.com> 
>Sent: Sunday, February 2, 2014 6:24 PM
>Subject: Re: [time-nuts] Sample "R" script for ADEV under Linux wanted
> 
>
>I suggest to use the TVB's
>http://www.leapsecond.com/tools/adev1.c
>C source and derive your script from it... but first, your GPSDO has
>to put out the time interval error samples or you have a reference and
>a TIC to measure your GPSDO (better this last setup).
>
>On Mon, Feb 3, 2014 at 1:02 AM, Bob Stewart <bob at evoria.net> wrote:
>> Subject says it all.  Does anyone have a script I could use as a starting point to calculate/plot the ADEV for my GPSDO?
>>
>> Bob - AE6RV
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