FUNGICIDE APPLICATION AFFECTS NITROGEN UTILIZATION EFFICIENCY, GRAIN YIELD, AND QUALITY OF WINTER WHEAT




Tightly Coupled Integration of GPS Ambiguity Fixed Precise Point Positioning and MEMS-INS through a Troposphere-Constrained Adaptive Kalman Filter

Precise Point Positioning (PPP) makes use of the undifferenced pseudorange and copyright phase measurements with ionospheric-free (IF) combinations to achieve centimeter-level positioning accuracy.Conventionally, the IF ambiguities are estimated as float values.To improve the PPP positioning accuracy and shorten the convergence time, the integer ph

read more