Posts Tagged "EGNOS"

The recent certification of the European Geostationary Navigation Overlay Service (EGNOS) for safety of life applications now means that its performance is of a high enough standard that it can be used for aviation. Pilots can reliably use it as a navigation tool, enhancing the performance of stand-alone GPS. This means navigations systems for aircraft can now be produced knowing that the systems they will use are certified, robust and reliable. Designers and manufacturers of these systems will...

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The ionosphere is the single largest error source in point positioning after the application of precise GNSS orbit and clock products, and there are a number of mathematical models that have been proposed to mitigate its effects. Of these, the model developed by John A Klobuchar is used by the GPS system and broadcast by every satellite. The Klobuchar model is something of a compromise between computational complexity and accuracy. However, it is reckoned to be capable of correcting up to 70% o...

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By Spirent On August 19, 2010
EGNOS, WAAS, MSAS, GPS augmentation

Hosted by the European Space Agency, the European Commission and Eurocontrol, EGNOS is the European Geostationary Navigation Overlay Service, and is the first pan-European satellite navigation system. EGNOS comprises just three satellites, and acts as an enhancement to the US-based GPS system for safety critical applications in aviation and marine environments. The EGNOS Open Service has been up and running since 1st October 2009. This provides freely available positioning data through...

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