Performance of Onboard Wake-Vortex Prediction Systems Employing Various Meteorological Data Sources

摘要

In this work the accuracy of wake-vortex predictions of DLR's wake encounter avoidance and advisory system (WEAA) is analyzed by means of data gathered from a flight test campaign in April2014. The system is based on airborne data exchange between aircraft and allows pilots to avoid potentially dangerous wake-vortex encounters. As the vortex evolution is strongly controlled by atmospheric parameters, the acquisition of meteorological data is crucial for WEAA. The accuracy of the wake-vortex predictions is investigated, employing first the current automatic dependent surveillance (ADS-B) standard, which is then extended by additional meteorological data transmitted via telemetry, or data from numerical weather predictions.