The flight characteristics of high altitude long endurance uav are analyzed , several typical kinds of aeronautical weather are ingathered , and the vertical distributing model of large scale windfield is established , traditional numerical simulation methods of atmosphere environment are summarized . 2 分析了高空长航时无人机的飞行特点，统计了几种的典型航空气象特征，并提出大尺度风场的垂直分层型，最后总结了大气风场的常用数值模拟方法； 2
In consideration of the special mission characteristics and technical requirement of high altitude long endurance unmanned aerial vehicle , an authentic real - time and space - time windfield integrated model is accomplished to take atmosphere environment influences into account . at the same time , we should analyze the dynamics the uav encounters dispersedly , so the " finite scale " aircraft concept is quoted 根据长航时无人机的特殊飞行任务特点和技术要求，在飞行试验阶段，有必要综合考虑飞行环境中各种大气干扰因素的影响，为无人机设计与仿真提供一个真实、适时的风场时空分布模型。
Most countries in the world attach importance to the use of long - time uav ( unmanned aerial vehicle ) in the military . the kernel question of long - time uav is how to improve the reliability of flight control computer . the research of how to improve the reliability of flight control computer has became more and more important today 长航时无人机的重要性尤其在军事上已经得到国内外的高度重视，其核心飞行控制计算机(以下简称“飞控计算机” )的可靠性问题变的日益突出，对其容错研究成为当今的热点。
