Global Positioning System disaster notification messaging service
Approved for public release; distribution is unlimited === The United States has offered free worldwide position, navigation, and timing (PNT) broadcast data through the Global Positioning System (GPS) since its 1993 initial operations capable declaration, and periodic modernization efforts have bee...
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Monterey, California: Naval Postgraduate School
2013
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| Online Access: | http://hdl.handle.net/10945/37592 |