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), tracking systems, navigation, Pedestrian Navigation Systems (PNSs), intelligent transportation Systems, precise positioning and emergency callers. During the last 15 years there are many important events in the field of satellite navigation systems such as: (a)the full operational GPS in 1993, when 24 GPS satellites were operating in their assigned orbits, available for navigation use and providing Standard Positioning Services.
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