9.3 - Future GNSS: Improved Signals and Constellations
- etc2014 - 34. European Telemetry and Test Conference
2014-06-03 - 2014-06-05
- 9. GNSS & Antennae
- G. Martínez Morán - Airbus Defense & Space, Getafe (Spain)
- 166 - 171
December 31, 2020 in the GNSS (Global Navigation Satellite Systems) world. The U.S. Government has just switched off the military encrypted signal embedded in the L2 and L1 frequency of the GPS system. All the high precision receivers based on L2 codeless and semi-codeless acquisition have become obsolete. Luckily, new improved GPS signals are available both in L2 and the new L5 frequency. In addition, new GNSS systems have become operative. The European Union has deployed GALILEO, CHINA Compass and Russia has upgraded GLONASS with CDMA signals. This paper briefly explains the new scenario in satellite positioning systems that will appear in the following years. New modernized signals and their expected improvements and performance are covered. Besides, new systems features and constellations are also explained.