Category Archives: GNSS Constellation

A Guide to Using International GNSS Service (IGS) Products

Jan Kouba [ link-1708-0029 ] Link to IGS : Since 1994, the International GNSS Service (IGS) has provided precise GPS orbit products to the scientific community with increased precision and timeliness. Many national geodetic agencies and GPS users interested in geodetic positioning have adopted the IGS precise orbits to achieve centimeter level accuracy and ensure… Read More »

Galileo Science Opportunity Document

European Space Agency (ESA) [ link-1708-0022 ] Link to ESA : This document describes the opportunities offered by satellite navigation systems (and more specifically, the Galileo system) and their signals to different scientific communities, as well as the potential benefits for the Galileo system resulting from its scientific exploitation. This document was published in 2010… Read More »

UN Education Curriculum – Global Navigation Satellite Systems

United Nations, Office for Outer Space Affaires [ link-1708-0019 ] Link to unoosa.org : Global Navigation Satellite Systems (GNSS) include constellations of Earth-orbiting satellites that broadcast their locations in space and time, of networks of ground control stations, and of receivers that calculate ground positions by trilateration. GNSS are used in all forms of transportation:… Read More »

Global Navigation Satellite System (GNSS)

Alain L. Kornhauser [ link-1708-0018 ] Link to prinston.edu : Recently, there is an increase interest in positioning techniques based on Global Navigation Satellite Systems (GNSS) such as Global Positioning System (GPS), cellular network infrastructure or on the integration of the two technologies for a wide spread of Applications such as Automatic Vehicle Location (AVL),… Read More »

Galileo OS Service Definition Document

European Union [ link-1708-0010 ] Link to GSA : Galileo is the European Global Navigation Satellite System (EGNSS), under civil control, that provides satellite positioning services to European citizens and worldwide. Galileo provides ranging signals in three different frequency bands, enabling single- and dual- frequency positioning for users equipped with suitable receivers. As one of… Read More »

Galileo Open Service SIS Interface Control Document Issue 1.3

European Union [ link-1708-0009 ] Link to GSA : The name “Galileo” shall mean the system established under the Galileo programme. The present European GNSS (Galileo) Open Service Signal-In-Space Interface Control Document (OS SIS ICD ) Issue 1.3 contains the publicly available information on the Galileo Signal-In-Space. It is intended for use by the Galileo… Read More »

GPS Civil Monitoring Performance Specification 2nd Edition

U.S. Department of Transportation [ link-1708-0007 ] Link to GPS.gov : This Civil Monitoring Performance Specification (CMPS) is published and maintained at the direction of the Program Manager for Civil Applications, Global Positioning Systems Wing (GPSW). The purpose of this document is to provide a comprehensive compilation of requirements for monitoring the GPS civil service… Read More »

GNSS User Technology Report Issue 1, 2016

The European Commission, European GNSS Agency (GSA) [ link-1707-0001 ] Link to GSA : In recent years, GNSS technology, both on the side of global constellations and user receivers, has been developing considerably. European systems EGNOS and Galileo are increasingly present in GNSS receivers, providing enhanced performance to their users in Europe and worldwide. Despite… Read More »