Design and Implementation of Real-Time Position Differential GPS

摘要

A design and implementation method for real time position differential GPS(Global positioning System) is discussed in this paper. The differential GPS (DGPS) scheme adopted in this system differs from pseudorange DGPS mainly in that reference stations broadcast position corrections--instead of pseudorange corrections--needed for real time user data processing. This system has several advantages: high positioning accuracy, fast corrections, good integrity, simple equipment, and easy operation.