GPS World, September 2016
AUTOMATED VEHICLE LOW COST PRECISE POSITIONING FOR AUTOMATED VEHICLES Carrier Phase Differential GNSS Produces Mass Market Centimeter Accuracy A DENSE REFERENCE NETWORK FACILITATES LOW COST carrier phase differential GNSS positioning with rapid integer ambiguity resolution This could enable precise lane keeping for automated vehicles in all weather conditions BY Matthew J Murrian Collin W Gonzalez Todd E Humphreys Kenneth M Pesyna Jr Daniel P Shepard and Andrew J Kerns S trong demand for low cost precise positioning exists in the mass market Carrier phase differential GNSS CDGNSS positioning accurate to within a few centimeters even on a moving platform would satisfy this demand were its cost significantly reduced Low cost CDGNSS would be a key enabler for many demanding consumer applications 32 GPS WORLD WWW GPSWORLD COM SEPTEMBER 2016 Centimeter accurate positioning by CDGNSS has been perfected over the past two decades for applications in geodesy precision agriculture surveying and machine control But mass market adoption of this technology will demand much lower user cost by a factor of 10
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