[FOSS-GPS] how to use *.sp3, *.clk, *.yyi in rtkpost with Kinematic mode

[Anders Wallin]

FWIW some screenshots from when I tried a few different programs for static
PPP:
http://www.anderswallin.net/2013/12/comparing-gps-ppp-solutions/

in many cases I found ESA gLab more user-friendly with the GUI/dialogs
guiding the user through the various stages. You could try it:
http://gage.upc.edu/gLAB

I've only done PPP solutions from dual-frequency L1/L2 receivers that
produce RINEX files. Not familiar at with IONEX files, since those are not
needed with L1/L2-receivers.

Anders


On Wed, Mar 18, 2015 at 8:29 PM, Yanqing Hou <fishloveocean at gmail.com>
wrote:

> Hi all,
> I want to use the precise ephemeris (*.sp3), precise clock correction
> (*.clk), and ionospheric corrections (*.yyi) from IGS in resolving a
> baseline of about 200km. I tried to include the sp3 and clk files in the
> input dialogue, and chose the options in setting1 as:
> Ionosphere Correction: IONEX TEC,
> Satellite Ephemeris/Clock: Precise
>
> I used only GPS constellation and continous mode to resolve ambiguities,
> but the precision of the baseline is still very low: the standard deviation
> of N/E/U is around 0.5m in each direction. I assume I did not use the sp3,
> clk, and ionex files correctly, because other people can have much better
> precision than mine with other softwares.
>
> Is there anybody who has an experience of using these IGS products to
> process the baseline solutions?
>
> Thanks,
> Yanqing
>
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