[LEAPSECS] Time math libraries, UTC to TAI
John Sauter
John_Sauter at systemeyescomputerstore.com
Wed Dec 28 08:37:38 EST 2016
On Wed, 2016-12-28 at 14:01 +0800, Sanjeev Gupta wrote:
>
> On Tue, Dec 27, 2016 at 11:36 PM, John Sauter <John_Sauter at systemeyes
> computerstore.com> wrote:
> > > Also note that many large radar systems have built-in simulators,
> > > used
> > > for system integration during development and for training
> > > thereafter.
> > > Such simulators need to be able to work using system time that is
> > > not
> > > the present, say to rerun recorded observations or to simulate
> > > future
> > > or past scenarios. In both cases, the GPS receiver does not know
> > > the
> > > correct leap second offset to use. The usual solution is an
> > > application-provided table all past leap seconds, plus the next
> > leap
> > > second (if known). The table is updated manually.
> >
> > That sounds like a fine solution. It would be nice if the table
> > were
> > maintained by the group of people who needed it, so that everyone
> > wouldn't have to update his own table.
> >
>
> If I have understood you correctly, this is publicly available, based
> on the IERS Bulletin C:
>
> https://www.ietf.org/timezones/data/leap-seconds.list
>
> --
> Sanjeev Gupta
> +65 98551208 http://www.linkedin.com/in/ghane
You have understood me correctly; I was assuming that the radar systems
did not use the NTP format for their leap seconds file.
John Sauter (John_Sauter at systemeyescomputerstore.com)
--
PGP fingerprint E24A D25B E5FE 4914 A603 49EC 7030 3EA1 9A0B 511E
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