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Re: gpsrinex - smaller than 1s epoch interval


From: Felix Horvat
Subject: Re: gpsrinex - smaller than 1s epoch interval
Date: Wed, 20 May 2020 15:08:32 +0200

Hi all,

thanks Gary for the quick changes. I wrote some comments on gitlab.

Is the bad data for fast readout also true for new multiband receiver like
the ZED-F9P? They almost certainly don’t mention anything in the datasheet
that would indicate lower accuracy besides a (much) higher power
consumption.

The use case is kinematic PPP for aerial imagery on fast moving platforms.

Cheers Felix


-----Urspr√ľngliche Nachricht-----
Von: gpsd-users <gpsd-users-bounces+felix.horvat=address@hidden> Im
Auftrag von Gary E. Miller
Gesendet: Mittwoch, 20. Mai 2020 01:15
An: address@hidden
Betreff: Re: gpsrinex - smaller than 1s epoch interval

Yo All!

I just pushed to git head a change in gpsrines.  It allows the sample
interval to be set to precision of 1 ms.  Internally it uses a timespec_t.

Not properly tested yet.  Please test.

I know of very few people sampling their GNSS receiver faster than
1 Hz.  The few reports I have gotten mention that thre receivers do not sent
good data that fast.  better to set the receiver to 1HZ and do your own
interpolation.

An area ripe for experimentation.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
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    "If you can't measure it, you can't improve it." - Lord Kelvin




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