Temporal evolution of the RCS of aircraft wake vortices

Authors: Xuesong Wang, Jianbing Li, Longhai Qu, Chen Pang, Fengliang Niu

Abstract:
Knowledge of the radar scattering characteristics is one of the key issues for the development of wake vortex detection technology. This paper studies the temporal evolution of the RCS (radar cross-section) of wake vortices. The RCS–time plot is observed to increase as a whole and step at a certain time. These properties could provide help to the design of wake vortex detection radar and the optimization of radar station layout. The special spiral structures within the wake, together with the Bragg scattering theory, are used to well explain these phenomena, and some representative radar experiments are also included to verify them.

Keywords:
Radar
Wake vortex
RCS
Bragg scattering
Spiral structure

Published in: Aerospace Science and Technology  (Volumes 24, Issue 1, January -  February, 2013)

Publisher: Elsevier

ISSN Information: 1270-9638

Temporal evolution of the RCS of aircraft wake vortices

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