Abstract
The accuracy of 4D trajectory prediction is the foundation of trajectory-based operation and decision support tools of ATC. Meteorological modeling, especially the wind modeling, is the key element for improving the precision of trajectory prediction. Through analyzing the wind data in GRIB (GRIdded Binary) format, wind speed and direction at each levels can be obtained. Meanwhile, the 4D trajectory prediction model is constructed based on the wind effect to aircraft movements, especially ground speed and heading of aircraft. Taking arrival flights to Shanghai Pudong International Airport as an example, a simulation is conducted through the comparison of prediction results and the radar information. And the simulation results indicate the effectiveness of the proposed approach.
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