基于气象探测的平流层浮空器飞行轨迹预测方法  

Forecasting Method of Stratospheric Aerostat Flight Trajectory Based on Meteorological Detection

作　　者：蔡明 颜坤 熊超 曹瑞 CAI Ming;YAN Kun;XIONG Chao;CAO Rui(Beijing Near Space Airship Technology Development Co.,Ltd.,Beijing,100070 China)

机构地区：[1]北京临近空间飞艇技术开发有限公司,北京100070

出　　处：《科技创新导报》2021年第11期9-14,共6页Science and Technology Innovation Herald

摘　　要：平流层浮空器飞行试验要求在拟定空域范围内开展,通过寻找平流层准零风层来实现区域驻空飞行。本文利用探空仪获取了试验地区风速、风向、压力、温度要素随高度分布规律,同时进行该地区平流层准零风层判断分析,使用包含平流层浮空器动力学模型和热力学模型的计算软件进行飞行轨迹仿真,并结合实际地域进行飞行轨迹和落点预测。结果表明:在探测时间段内,该地区20km高度附近存在风速不大于5m/s的弱风层,18~22km存在风向变化超过180°的切变风;17~19km最低温度为-71℃,19~22km温度由-70℃上升至~59℃;19~22km压力由65.4hPa降低至40hPa;在19~20km区间,存在持续时间不小于12h的准零风层,基于气象要素规律仿真预测12h内飞行轨迹不超出拟定空域,落点在开阔地点,并通过飞行试验得到有效验证。The flight test of the stratospheric aerostat is required to be carried out within the scope of the proposed airspace,and the regional stationary flight is achieved by searching for the stratospheric quasi-zero wind layer.This paper uses radiosondes to obtain the distribution of wind speed,wind direction,pressure,and temperature in the test area with height.At the same time,the stratospheric quasi-zero wind layer in the area is judged and analyzed.Use calculation software including stratospheric aerostat dynamic model and thermodynamic model to simulate flight trajectory,and predict flight trajectory and landing point in combination with actual area.The results show that during the detection period,there is a weak wind layer with a wind speed of not more than 5m/s near the height of 20km in the area,and there is a shear wind with a wind direction change exceeding 180°at 18-22km;The lowest temperature of 17-19km is-71℃,the temperature of 19-22km rises from-70℃to-59℃;the pressure of 19-22km decreases from 65.4hpa to 40hpa;In the 19-20km interval,there is a quasi-zero wind layer with a duration of no less than 12 hours.Based on the simulation of meteorological elements,it is predicted that the flight trajectory will not exceed the planned airspace within 12 hours,and the landing point will be in an open place,which is effectively verified by flight tests.

关 键 词：飞行轨迹预测 气象探测 浮空器 平流层 

分 类 号：TN95[电子电信—信号与信息处理]