红外与毫米波学报, 2014, 33 (4): 412, 网络出版: 2014-09-01  

云雾中飞机尾流毫米波雷达多普勒特性研究

The millimeter band doppler characteristics of wake vortices in cloudy and foggy
王涛 1,*屈龙海 1,2郭晨 1,2王海军 1,2
作者单位
1 国防科学技术大学 电子科学与工程学院,湖南 长沙410073
2 电子信息系统复杂电磁环境效应国家重点实验室,湖南 长沙410073
摘要
构建了尾流中云雾滴运动微分方程,通过求解运动方程得到了尾流中云雾滴的运动轨迹、速度分布等特性.分析了尾流中云雾滴的密度分布特性,并以典型的W波段雷达为例,分析了云雾中尾流的探测距离.在此基础上,提出了一种云雾中尾流雷达多普勒特性模拟方法,得到了典型毫米波雷达空间分辨率和观测视角下云雾中尾流的多普勒特性.研究结果表明,云雾中尾流毫米波雷达回波调制了丰富的尾流速度场信息,可为航空安全提供特征支撑.
Abstract
The differential equations of motion of the cloud droplets in wake vortices were derived. The trajectory and velocity distribution of cloud droplets in wake vortices were obtained by solving the equations of motion. Referring to the parameters of the typical W band millimeter-wave radar, the maximum detection range of wake vortex was analyzed. Then a methodology to simulate the radar Doppler characteristics of wake vortices in cloud was proposed, and the Doppler characteristics of wake vortices in cloud under typical resolution conditions were simulated. The simulation results show that Doppler characteristics of wake vortices in cloud are consistent with the velocity characteristics of wake vortices.
参考文献

[1] Liu C.Wake vortex encounter analysis with different wake vortex models using vortex-lattice method [D]. Netherlands: Delft University of Technology, 2007.

[2] Veillette P R. Data show that U.S. wake-turbulence accidents are most frequent at low altitude and during approach and landing[J]. Flight Safety Digest. 2002,21(3-4): 147.

[3] FENG Zhi-Yong. How wake vortexes affect the flights and safety separation research[D]. Southwest Jiaotong University (冯志勇. 尾流对飞行的影响及安全间隔研究. 成都: 西南交通大学), 2007.

[4] Garnet M, Altman A. Identification of any aircraft by its unique turbulent wake signature[J]. Journal of Aircraft. 2009,46(1): 263-268.

[5] Debruin A. Wake vortex evolution and encounter (WAVENC) [J]. Air and Space Europe. 2000,2(5): 84-87.

[6] Wake net3-Europe. Green-wake project description[C/OL].2010(2010107). http: //wakenet.eu/index.php id=65.

[7] Heymsfield A J, Thompson G, Morrison M, et al. Formation and spread of aircraft-induced holes in clouds[J]. Science, 2011,333(1): 77-81.

[8] Travis D J, Carleton A M, Lauritsen R G. Contrails reduce daily temperature range—A brief interval when the skies were clear of jets unmasked an effect on climate[J]. Nature. 2002,418(8): 601.

[9] Barbaresco, Meier U. Radar monitoring of a wake vortex: Electromagnetic reflection of wake turbulence in clear air[J]Comptes Rendus Physique 2010,11(1) 54-67.

[10] Frehlich R, Sharman R. Maximum likelihood estimates of vortex parameters from simulated coherent Doppler lidar data[J]. Journal of Atmospheric and Oceanic Technology. 2005,22: 117-130.

[11] BarbarescoF. Wake vortex safety and capacity system[J], Journal of ATC,49(1): 17-32.

[12] Liu Z, Jeannin N, Vincent F,et al. Development of a radar simulator for monitoring wake vortices in rainy weather [C]. In IEEE CIE International Conference on Radar. 2011,B110: 284-287.

[13] NIU Feng-Liang. Study on the radar characteristics of aircraft wake vortices in rainy weather[D]. Changsha: National University of Defence Technology(牛凤梁. 降雨条件下飞机尾流雷达特性研究[D]. 长沙: 国防科学技术大学), 2012.

[14] Seliga T A, Mead J B. Meter-scale observations of aircraft wake vortices in precipitation using a high resolution solid-state W-band radar[C].In American Meteorological Society, The 34th Conference on Radar Meteorology 59 October 2009, Williamsburg, VA.

[15] ZHAO Zhen-Wei. Study on radiowave propagation characteristics and remote sensing of hydrimeteors[D]. Xi'an: Xidian University(赵振维. 水凝物的电波传播特性与遥感研究. 西安: 西安电子科技大学), 2001.

[16] SHENG Pei-Xuan, MAO Jie-Tai, LI Jian-Guo, et al. Atmospheric physics[M]. Beijing: Peking University Press(盛裴轩, 毛节泰, 李建国,等. 大气物理学. 北京: 北京大学出版社), 2003.

[17] HU Zan-Yuan, LV Zhi-Yong. Numerical study on drag force of blown sand[J]. Journal of Desert Research(胡赞远, 吕志咏. 风沙运动中沙粒阻力的数值研究.中国沙漠), 2009,29(1): 46-49.

[18] Gerz T, HolzapfelaF, Darracq D. Commercial aircraft wake vortices[J]. Progress in Aerospace Sciences. 2002, 38: 181-208.

[19] ZHONG Ling-Zhi, LIU Li-Ping, CHEN Lin, et al. A potential application of a millimeter-wavelength radar to studying the cloud physics mechanism and snow weather[J]. Acta Meteorologica(仲凌志, 刘黎平, 陈林,等. 星载毫米波测云雷达在研究冰雪天气形成的云物理机制方面的应用潜力.气象学报), 2010,68(5): 705-716.

[20] Probert-Jones, J R. The radar equation in meteorology[J]. Q. J. R Meteorol. Soc., 1962,88, 485-495.

[21] Li J B, Wang XS, Wang T. Modeling of aircraft wake vortices’ dielectric constant distribution for radar detection[J]. IEEE Transactions on Aerospace and Electronic Systems. 2011,42(2): 820-831.

王涛, 屈龙海, 郭晨, 王海军. 云雾中飞机尾流毫米波雷达多普勒特性研究[J]. 红外与毫米波学报, 2014, 33(4): 412. WANG Tao, QU Long-Hai, GUO Chen, WANG Hai-Jun. The millimeter band doppler characteristics of wake vortices in cloudy and foggy[J]. Journal of Infrared and Millimeter Waves, 2014, 33(4): 412.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!