摘要
飞机尾流是飞机飞行时在其后方产生的一对反向旋转的强烈湍流,对后续飞机飞行安全具有重大影响,其探测已成为制约机场容量增长和影响空中交通安全管理的瓶颈,亟需发展飞机尾流雷达探测和监视的技术与系统。该文构建了基于激光雷达探测的飞机尾流特征参数反演系统,可基于实测数据反演得到尾流涡心位置和速度环量等特征参数。同时构建了尾流动力学、散射特性与雷达回波仿真模块,可实现参数反演算法的性能评估。该系统的参数反演性能优良,运行稳定,可为机场安全管控提供有效技术手段,为飞机尾流的短时行为预测、危害评估和动态间隔标准制定等提供基础支撑。
Aircraft wake are a couple of counter-rotating vortices generated by a flying aircraft,which can be very hazardous to a follower aircraft.The detection of it is regarded as a key issue for airport capacity improvement and air traffic safety management.To this end,we constructed a Lidar detection based aircraft wake vortex parameter-retrieval system,which can be used to retrieve the vortex-core positions and circulations from detected data.Furthermore,dynamics,scattering and Lidar echo simulation modules were built to validate the parameter-retrieval algorithms.Results show that the proposed system performs well and runs steadily,which can serve as a good tool for aircraft wake vortex characterization,prediction,and is very helpful to establish dynamic wake separation in air traffic management.
作者
沈淳
高航
王雪松
李健兵
SHEN Chun;GAO Hang;WANG Xuesong;LI Jianbing(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)
出处
《雷达学报（中英文）》
CSCD
北大核心
2020年第6期1032-1044,共13页
Journal of Radars
基金
国家自然科学基金(61490649,61771479,61625108)
湖南省杰出青年基金(2018JJ1030)。
关键词
激光雷达
飞机尾流
特征参数反演
探测
Lidar
Aircraft wake vortex
Parameter-retrieval
Detection
