Degree project seminar on Thursday, Feb 25, at 13.00 in 3085

by

Alice Tourtier

“Study of the contribution of an ionospheric model embedded on a dual frequency receiver”

 Abstract:

GNSS (Global Navigation Satellite System) is a system that allows a receiver to know its position. It includes GPS (Global Positioning System), a system designed by the United States, Galileo (European), Beidou (Chinese) and others. Currently, with a stand-alone GPS receiver, the accuracy on the position estimation is around 1m. Indeed, GNSS signals are altered when spreading through the atmosphere and can be diffracted, reflected or scattered by the nearby environment of the receptor. These contributions (respectively called atmospheric delay and multipath) lead to errors on the receiver position estimate. The goal of this study is to present methods in order to tackle these errors in the GNSS receiver.

The work was carried out at CNES - the French Space Center in Toulouse, France.

Main supervisor: Anna Jensen, KTH

Co-supervisors: Marion Aubault and Sebastien Rougerie, CNES.