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Re: gpsrinex - smaller than 1s epoch interval

From: Gary E. Miller
Subject: Re: gpsrinex - smaller than 1s epoch interval
Date: Tue, 19 May 2020 11:31:55 -0700

Yo Greg!

On Tue, 19 May 2020 10:50:13 -0400
Greg Troxel <address@hidden> wrote:

>   NRCAN PPP in kinematic mode will produce positions at 1s intervals
>   it seems conceptually sensible to do kinematic PPP at 0.1s

Thanks, good info.  Since RINEX allows 0.001 as a minimum, I'll
prgram to taht.

> as for float, I would avoid that to stay away from possible rounding
> issues.

Then you have to throw all of gpsd away.  :-)

>   set receiver to 40 Hz or something via commands

Easy with ubxtool.

>   capture raw ubx data w/o using gpsd

Or with gpsd.  Live or captured, the raw data has to through gpsd to get
to gpsrinex.

>   process that at NRCAN PPP and see if it works

Easier said than done.  But worth a shot.

I'll make --interval a float today in git head and see how that works.

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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