GNSS Corrections and Monitoring

In course

Description

This lecture covers the concept of GNSS corrections, focusing on the autonomous DGPS station, the Swipos correction service, and the Permanent Network Analysis Center. It explains the real-time calculation and broadcast of corrections, the integration of range corrections, and the analysis of GNSS coordinates. The lecture also delves into the monitoring of GPS satellites, the status of AGNES stations, and the validation of tropospheric parameters. Additionally, it discusses the principles of EGNOS, the architecture of the system, and the application of ionospheric corrections. The presentation concludes with a detailed analysis of the error estimation and correction modeling in GNSS systems.

Instructor

Official source

https://mediaspace.epfl.ch/media/0_ze6onbkm

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A satellite navigation or satnav system is a system that uses satellites to provide autonomous geopositioning. A satellite navigation system with global coverage is termed global navigation satellite system (GNSS). , four global systems are operational: the United States' Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System, and the European Union's Galileo.

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The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

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