We are living in an era of significant and fast changes in the field of Global Navigation Satellite Systems (GNSS). The US Navstar Global Positioning System (GPS) is being modernized, Europe is building its own, civilian GNSS, named Galileo, China is launching Compass/Beidou 2 GNSS with both regional and global components and Russia has finalized the deployment of its renewed “Globalnaya navigatsionnaya sputnikovaya sistema” or GLONASS, by launching the 24th satellite of the constellation in 2011. While about a decade ago, the world satellite navigation was mainly on the shoulders of Navstar GPS, the situation has now changed and it is forecast that a decade from now, the world will benefit of more than 100 navigation satellites in the sky. In addition, regional Satellite-Based Augmentation Systems (SBAS) are being built in order to support and enhance the satellite positioning given by the GNSS. In Europe, such an SBAS is the European Geostationary Navigation Overlay Service (EGNOS), operated by the European Space Agency.


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    Title :

    Introduction


    Additional title:

    Signals, Communication Technology


    Contributors:


    Publication date :

    2014-09-13


    Size :

    6 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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