详情

原文传递 Doppler radar detection of vortex hazard indicators

题名：	Doppler radar detection of vortex hazard indicators
作者：	Nespor, Jerald D.; Hudson, B.; Stegall, R. L.; Freedman, Jerome E.
关键词：	doppler；vortex；detection；radar；icat；characteristics；measurement；statistics；velocity；objective
摘要：	Wake vortex experiments were conducted at White Sands Missile Range, NM using the AN MPS-39 Multiple Object Tracking Radar (MOTR). The purpose of these experiments was twofold. The first objective was to verify that radar returns from wake vortex are observed for some time after the passage of an aircraft. The second objective was to verify that other vortex hazard indicators such as ambient wind speed and direction could also be detected. The present study addresses the Doppler characteristics of wake vortex and clear air returns based upon measurements employing MOTR, a very sensitive C-Band phased array radar. In this regard, the experiment was conducted so that the spectral characteristics could be determined on a dwell to-dwell basis. Results are presented from measurements of the backscattered power (equivalent structure constant), radial velocity and spectral width when the aircraft flies transverse and axial to the radar beam. The statistics of the backscattered power and spectral width for each case are given. In addition, the scan strategy, experimental test procedure and radar parameters are presented.
报告类型：	科技报告