New Version of gfzrnx RINEX 2/3 Tool Ready for Testing

May 5, 2015By

The next version (0.93) of the “gfzrnx” RINEX-2/3 Tool is now available. Because of user feedback, the developers have fixed bugs and have added these new features: strict epoch interval handling via -sei command line parameter support of the upcoming RINEX version 3.03 (BDS B1 obs. types, IRNSS support) The software is still in a beta state, according to the GFZ IGS... read more

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ComNav, CGEOS Build First BeiDou CORS Station in Europe

April 9, 2015By

Europe's first BeiDou CORS station — Qiao CORS Station — has been built in Wallonia, Belgium. ComNav partnered with local company CGEOS – Creative Geosensing on the project read more

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Innovation: Under Cover

September 1, 2013By
FIGURE 1. Artist’s impression of the synthetic-aperture GNSS system for surveying in a forest.

Synthetic-Aperture GNSS Signal Processing
We take a look at a novel GNSS signal-processing technique, which uses the principles of SAR to improve code and carrier-phase observations in degraded environments such as under forest canopy. The technique can simultaneously reject multipath signals while maximizing the direct line-of-sight signal power from a satellite. Along with a specially programmed software receiver, it uses either a single conventional antenna mounted, say, on a pedestrian’s backpack for GIS applications or a special rotating antenna for high-accuracy surveying. Want to learn more? Read on. read more