摘要
结合典型的稳定段尾流空气动力学模型和电磁散射模型,仿真分析了尾流的毫米波雷达多普勒特性;进而利用网格映射的方法,提出了一种基于双部毫米波雷达探测的尾流速度场反演和环量估计技术。结果表明,双部多普勒雷达可有效估计垂直于航向截面上的尾流二维速度场特征,据此可以得到航空安全领域非常关注的尾流环量特征。
The millimeter radar doppler characteristics of the wake vortex is simulated and analyzed on the combination of typical wake vortex aerodynamics model and electromagnetic scattering model. And then, using a grid mapping method. A technology is proposed to estimate the velocity and circulation of wake vortex based on two millimeter radars. Results show that the 2D velocity （ on the cross section） of wake vortex, as well as its circulation for aviation security, can be well estimated from the Doppler spectrums of two radars.
出处
《现代雷达》
CSCD
北大核心
2015年第6期10-15,共6页
Modern Radar
关键词
飞机尾流
云雾
雷达
多普勒
环量估计
wake vortex
cloud and mist
radar
Doppler
circulation estimation
