The uav ( unmanned air vehicle ) is playing an more and more important role in modern wars . it is featured by long endurance , large cruise range , heavy overload capability as well as attitude alteration limitless and casualty avoid when flying in hostile territory compared to manned air vehicle . compared to satellites it has low altitude , controllable movement , convenient arrangement and low cost 无人机在现代战争中扮演着越来越重要的角色，与有人驾驶飞机相比，无人机机动性能好，过载能力强，不存在飞行员伤亡；与侦察卫星相比，无人机飞行高度低，活动范围可控，部署方便，造价低廉，目前各国都在积极研制各种新型无人机。
In addition , airway winds , which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10 , 000 and 43 , 000 ft , are disseminated to the radar data processing and display system ( rdpds ) of the cad for calculation of the expected arrival time of aircraft at check points 除此之外，气象数据处理系统将飞机航道风的数据传送至民航处的雷达数据处理及显示系统，这些数据是风和温度的网格点值，其水平范围覆盖南海，垂直范围是由10 , 000至43 , 000尺之间的15个飞行高度；以上资料可用来计算航机抵达各定位点的时间。
When the wind is from the west or southwest , aircraft will depart from hkia initially towards the southwest until it is about 7 nautical miles from the runway where it will make a left turn . depending on its destination , an aircraft may turn towards the east and pass over hong kong island and kowloon peninsula , or turn towards a northerly direction , passing over the new territories at a relatively high altitude 当吹西或西南风时，飞机会从机场向西南方向起飞至离开跑道大约七海里时转左，视乎各航班的目的地，飞机可转向东面方向经港岛及九龙半岛上空，或再北转在较高的飞行高度飞越新界上空。
Second , by computing the trajectory of the missile and the method of analyzing cep , influences that the fighter ' s height , speed , pitch angle , the deflection angle between fighter and target , and the target moving characters make on the times of fighter attack and missile launch are deeply developed . third , by relating the motion of the missile and the fighter , the influences that fighter ' s dive angle and the deflection angle between fighter and target make on the attack field of the fighter are discussed in this paper when the fighter perform vertical and horizontal attack . criterion of attack effect is proposed focusing on attack time of the fighter , trajectory of the missile and destruction probability to the target 本文主要完成了以下几个方面的工作：对导弹可发射区和飞机可攻击区进行建模，通过对导弹弹道的仿真计算，并运用典型的圆概率偏差精度分析方法，详细讨论了飞机实施攻击时，飞机的飞行高度h 、速度v 、俯仰角、与目标的偏离角_ x及目标运动特性等对飞机攻击时机和导弹发射时机的影响；因此，将飞机和导弹结合起来，详细研究了飞机在垂直平面和水平平面内实施攻击时，飞机俯冲角和与目标的偏离角_ x对飞机的攻击范围的影响；以飞机实施攻击的时间t 、弹道特性和对目标的杀伤概率p来评判对地攻击的效果；最后给出典型算例，通过对空地攻击过程的仿真实现，对飞机飞行过载提出要求。
The design point of the designed forebody / inlet is flight mach number m = 6 and flight attitude h = 25km . the three - ramp , mixed external and internal compression hypersonic / inlet is chosen as representative geometry to be designed . nine types of hypersonic / inlet model with difference forebody length and total turning angle are obtained that the incidence angle of the first ramp and height of isolator are given 根据飞行任务要求，以飞行马赫数6 ，飞行高度25km为设计点，给定前体预压缩角、隔离段高度，对具有不同前体长度和不同总压缩转角的带隔离段的前体进气道进行了设计。
The key obstacles ： not only must the system provide a penetrating view of “ denied ” territory from a great distance , well above where an airplane can fly , but it must also be integrated with existing communications equipment so that information can be instantly relayed to forces on the ground and in the air 最主要的障碍是，这个系统不仅必须从远远高于飞机飞行高度的位置对“拒绝进入”的领土进行远距离透视，而且还必须与现有的通讯设备整合，使信息能够立即传送给地面和空中部队。
In addition , airway winds , which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10 , 000 and 43 , 000 ft , are disseminated to the radar data processing and display system rdpds of the cad for calculation of the expected arrival time of aircraft at check points 除此之外，气象数据处理系统将飞机航道风的数据传送至民航处的雷达数据处理及显示系统，这些数据是风和温度的网格点值，其水平范围覆盖南海，垂直范围是由10 , 000至43 , 000尺之间的15个飞行高度以上资料可用来计算航机抵达各定位点的时间。
