Land-based evaluation on dynamic accuracy in position provided by Global Positioning System

The authors examine the dynamic accuracy in position provided by the Global Positioning System (GPS), since most operations are conducted while moving. Thus, what is required in this case is not statically, but dynamically, high accuracy. However, few systems are available to get a fixed position at high accuracy for dynamic maneuvering, and the analysis of the dynamic data requires a position-by-position comparison. A dead reckoning system with excellent accuracy has been used for the comparison to GPS position. The value of the results derived using this approach depends heavily on careful synchronization of time during the tests carried out. The results obtained through the latest dynamic tests and applications for future navigation are discussed. >