Global Navigation Satellite Systems Engineering, Policy, and Design
The European Union Agency for the Space Programme (EUSPA) has published an online interactive world map providing information about augmentation service providers that support Galileo. Clicking over each country shows the names of the Galileo-ready providers along with the name of the service, type of service and coverage.
By Inside GNSS
Using in situ sensors, GNSS corrections and satellite remote sensing, it is possible to obtain information on soil anomalies, enabling farmers to take corrective actions in the field. This information is given through a pre-set field map which identifies areas needing a specific treatment, leading farmers to an improved cost-benefit ration for their agricultural crops.
By Inside GNSS
Trimble announced enhancements to its Trimble RTX correction services. Improvements in the high-accuracy correction service include convergence time reductions, more reliable and robust signals, and an easier workflow for surveyors.
By Inside GNSS
Iridium Communications Inc. made a strategic investment in DDK Positioning (DDK), an Aberdeen, Scotland-based provider of enhanced GNSS accuracy solutions. DDK uses the Iridium network, provided by a low Earth orbit (LEO) constellation, to provide global precision positioning services that can augment GNSS accuracy
By Inside GNSS
In May the former European GNSS Agency (GSA) officially rechristened itself as the European Union Agency for the Space Programme (EUSPA), marking the start of a new era for the EU space effort. Building on the legacy of the GSA, EUSPA will take on more responsibilities to create opportunities for EU citizens and the economy.
By Inside GNSS
A new tome — make that two new tomes — join the bookshelf of essential and authoritative references for GNSS users, while widening the umbrella a good deal to cover all PNT technologies, their sensors and their integrations. Edited by four leading lights of the community and assistant-edited by two more, its list of authors rounds up another 131 of the “usual suspects,” the names that are seen repeatedly in the presentations at technical conference and on their organizing boards. In every one of 64 subject matters, the author(s) is/are recognized experts, in many cases the recognized expert, on the material.
By Alan Cameron
The European GNSS Agency (GSA) selected Eutelsat Communications for the development, integration and operation of its next-generation European Geostationary Navigation Overlay Service (EGNOS) GEO-4 service.
By Inside GNSS
In the Port of Seville, Spain, pilots guiding large ships into docking use a portable pilot unit (PPU) incorporating GNSS corrections from the European Geostationary Navigation Overlay Service (EGNOS) to obtain positioning accuracies of 50 centimeters
By Inside GNSS
The Indian Regional Navigation Satellite System (IRNSS) has been accepted as a component of the World Wide Radio Navigation System (WWRNS) for operation in the Indian Ocean Region by the International Maritime Organization (IMO).
By Inside GNSS
Japan’s new Centimeter Level Augmentation Service (CLAS) now broadcasts a signal for nationwide open PPP-RTK service in Japan, providing centimeter positioning accuracy in a minute.
By Inside GNSS
Korea will inaugurate its own satellite-based augmentation system (SBAS), the Korea Augmentation Satellite System (KASS), sometime in 2022, with signals broadcast over the East Asian region from adjunct payloads aboard two geostationary communications satellites.
By Inside GNSS
In September, the Agency for Air Navigation Safety in Africa and Madagascar (ASECNA) started broadcasting a satellite-based augmentation system (SBAS) signal over Africa and the Indian Ocean. This marks the first SBAS open service in the region, modeled based on the European Geostationary Navigation Overlay Service (EGNOS).
By Inside GNSS
There are interesting tradeoffs to consider in placing navigation satellites at various orbital heights, including signal power, availability, cost, orbit prediction, receiver computational load and manufacturer motivation.
By Inside GNSS
