In a new study published on 04 December 2023, in the journal Satellite Navigation, researchers from Chinese Academy of Surveying and Mapping have developed a self-structured Empirical SSP (SESSP) ...

PPP. It’s one of the many acronyms (or initialisms, if you prefer) associated with the uses of global navigation satellite systems. It stands for precise point positioning. But what is that? Isn’t all ...

The Geodetic Reference Instrument Transponder for Small Satellites (GRITSS) facilitates a new observing method that has been designed to resolve systematic positioning errors between GPS and Very Long ...

December 16th, 2025 Hexagon signs multilateral agreement to strengthen global access to reliable positioning and geospatial services. Rating 1 2 3 4 5; Hexagon joins a UN-led glob ...

The 9 metre antenna is used both for geodetic VLBI measurements and for satellite data reception. The antenna features a special mechanical construction that assures high geometric stability for the ...

NO. 3 of the new series of professional papers of the Ordnance Survey contains some excellent notes on the geodesy of the British Isles, by Colonel Close, R.E., which bring the position of geodetic ...

Corner reflectors are used for the geometric and radiometric calibration and verification of Synthetic Aperture Radar (SAR) sensors. Their expected position in a focused SAR image and their expected ...