[FOSS-GPS] Single-Frequency PPP in RTKLIB

Dimitris Psychas psxdimitris at hotmail.com
Sun May 24 15:11:10 PDT 2015

No. In particular, when I use multiple GNSS systems, I get much better performance compared to GPS-only PPP, using dual frequency observation data. 

I thought the same, that the L2 observations from iono products are not produced correctly. But how could I fix it ? Do you have tried something like this ? I just used RTKCONV to remove the L2 frequency observations, and then I use IONEX TEC files as Ionosphere Correction in RTKPOST in order to establish the single-frequency PPP. 

From: fgnievinski at gmail.com
Date: Sun, 24 May 2015 17:19:05 -0300
To: foss-gps at lists.osgeo.org
Subject: Re: [FOSS-GPS] Single-Frequency PPP in RTKLIB

Do you get similar worse performance for GNSS compared to GPS when you process your original RINEX file containing dual-frequency measurements?If not, then there's something wrong in the way you're producing synthetic L2 observations from iono products.-F.

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