Geometry-free undifferenced, single and double differenced analysis of single frequency GPS, EGNOS and GIOVE-A/B measurements

This paper demonstrates a geometry-free GNSS measurement analysis approach and presents results of single frequency GPS, EGNOS and GIOVE short and zero baseline measurements. The purpose is to separate the different contributions to the measurement noise of pseudo range code and carrier phase observations at the receiver. The influence of...

Integrated atmospheric water vapor estimates from a regional GPS network

Integrated atmospheric water vapor (IWV) estimates from a 15-station-wide network of Global Positioning System (GPS) receivers have been collected continuously since November 1997. The core of this network consists of five stations of the active GPS reference system in the Netherlands. A network with sufficient long baselines was chosen to...

On the "Great circle reduction" in the data analysis for the astrometric satellite hipparcos

On the "great circle reduction" in the data analysis for the astrometric satellite Hipparcos