USING DIFFERENTIAL GLOBAL POSITIONING SYSTEM FOR TRUTH REFERENCE

ROCKEWELL-COLLINS 3S GPS RECEIVERS WILL BE INTEGRATED ON SEVERAL NAVY SURFACE PLATFORMS. THESE RECEIVERS PROVIDE A POSITION ACCURACY OF 16M (1 SIGMA). IF THEY HAD A DIFFERENTIAL GPS CAPABILITY, THE ACHIEVABLE ACCURACY WOULD BE BETTER THAN 5M (1 SIGMA). THIS EFFORT IDENTIFIES THE NAVY MISSIONS THAT WOULD BENEFIT FROM SUCH AN IMPROVED ACCURACY, DEFINES SYSTEM-LEVEL REQUIREMENTS FOR A DIFFERENTIAL CAPABILITY, ASSESSES SEVERAL IMPLEMENTATIONS USING THE 3S RECEIVER, PERFORMS A COST, PERFORMANCE AND EASE OF IMPLEMENTATION TRADEOFF AMONG THESE IMPLEMENTATIONS, AND SIMULATES THE PREFERRED IMPLEMENTATION ON OUR EXISTING, HIGH-FIDELITY COLLINS RECEIVER/GPS ENVIRONMENT SIMULATOR.