PROJECT TITLE :

Circulation retrieval of wake vortex in fog with an upward-looking monostatic radar

ABSTRACT:

Detection and parameter retrieval of aircraft wake vortices have attracted abundant attention in air traffic management and related fields. In foggy weather, the scattering of a wake vortex is especially determined by the fog drops carried by the rate field of the wake. By taking the fog drops' property of weak inertia into consideration, a brand new theoretical methodology to retrieve the circulation of a wake vortex generated in fog is proposed in this paper. In the method, an upward-wanting monostatic radar is used to get the Doppler velocities of radar cells along the symmetric line of the wake vortex, and then the circulation can be obtained through a terribly straightforward expression with respect to the Doppler velocities and also the length of the radar cells. Numerical simulation results verify the nice performance of the tactic.