Global Positioning System Shipborne Reference System
Clynch, James R.
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The long term goal is to improve the navigation capability of naval vessels using the Global Positioning System (GPS) to the extent that they can be used as a base for differential GPS. This will increase the operational flexibility of the navy in carrying out many of its missions. To achieve this goal, it is desired that a ship be able to obtain and maintain an absolute, stand alone, position of 2 m accuracy or better without inputs from outside elements except the GPS satellites.