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CALIBRA: Countering GNSS high Accuracy applications LImitation due to ionospheric disturbance in BRAzil

GNSS (Global Navigation Satellite System) is making a significant impact in support of operations where high accuracy is required, e.g., in precision agriculture, surveying, geodesy, land management, off-shore operations, to name a few.

The ionosphere causes a significant error on GNSS observations. Abnormal ionospheric conditions can impose serious degradation on GNSS system functionality.

Ionospheric disturbances affect mainly high and low latitude regions of the Globe - Brazil is particularly affected, due to its geographical location, extending across the magnetic equator, where behavior of the ionosphere can introduce considerable problems for GNSS users.

CALIBRA’s scientific aim is to develop and implement algorithms tailored for high precision carrier phase GNSS based applications in order to tackle the effects of ionospheric disturbances.

CALIBRA is a collaborative project under the Seventh Framework Program (FP7) funded by European GNSS Agency (GSA) and coordinated by Nottingham Geospatial Institute (NGI) at the University of Nottingham.


Visit the CIGALA-CALIBRA portal