Filter on Position: All Positions Autonomous (Least Squares) Conventional DGPS (Least Squares) SBAS corrected DGPS (Least Squares) RTK float RTK fixed Wide-area RTK float Wide-area RTK fixed OmniSTAR DGPS (Least Squares) Autonomous (Kalman Filter) Conventional DGPS (Kalman Filter) SBAS corrected DGPS (Kalman Filter) CDGPS (Kalman Filter) SBAS+ corrected DGPS (Kalman Filter) SBAS+ (Kalman Filter) RTX