If you wish to contribute or participate in the discussions about articles you are invited to contact the Editor

Ionospheric Models for Single Frequency Receivers

From Navipedia
Revision as of 12:52, 6 February 2012 by Jaume.Sanz (talk | contribs)
Jump to navigation Jump to search


FundamentalsFundamentals
Title Ionospheric Models for Single Frequency Receivers
Author(s) J. Sanz Subirana, J.M. Juan Zornoza and M. Hernández-Pajares, Technical University of Catalonia, Spain.
Level Basic
Year of Publication 2011
Logo gAGE.png

Single frequency receivers needs to apply a model to remove the ionospheric refraction, which can reach up to few tens of meters, depending on the elevation of rays and the ionospheric conditions.

The models used in GPS and Galileo are described in Klobuchar Ionospheric Model and NeQuick Ionospheric Model. The GPS/Galileo satellites broadcast the parameters needed to run these ionospheric models.

In GLONASS, there is no ionospheric model applied and thus, there is no broadcast of any parameter. However, anyone of the GPS or GALILEO ionospheric models could be used for GLONASS signals, by applying a correction factor given by their relative squared frequencies ratio.