机载VHF导航设备的半实物仿真设计与实现

发布时间：2018-04-26 15:35

本文选题：半实物仿真 + 机载甚高频导航设备　；参考：《中国民航大学》2016年硕士论文

【摘要】：机载VHF导航设备是飞机无线电导航的不可缺少的一部分,它不仅提供了如飞机的VOR方位角等重要的导航信息,还可以在气象条件恶劣和能见度差的条件下给驾驶员提供引导信息,保证飞机安全进近和着陆。介于机载VHF导航设备的重要作用,对于其的研究和开发也随着航空电子的发展日益增多,研究深度也在增强。目前对于机载VHF导航设备的科研主要从仿真和实物两个方面进行。仿真研究主要是对机载VHF导航设备进行分析,建立设备的数学模型,然后用计算机软件的形式再现设备的功能,这在模拟飞行中起到了重大的意义。实物研究则是建立VHF导航设备的地面台,在实际飞行中记录实时的机载甚高频导航信号。本文是对机载VHF导航设备的设计与实现采用半实物仿真研究,将一些在实验室中无法获得的信号用仿真的形式代替,一方面对机载VHF导航系统进行分析、建模和仿真;另一方面则是构建机载VHF导航设备的输出信号,使其与真实的设备尽可能的接近,成为满足航空工业标准的物理信号。在现代飞机上,VOR导航系统的机载设备与仪表着陆系统的航向信标的机载设备的有些部分是公用的,因此本文主要以VOR导航为研究对象。本文采用PC机加上多个下位机设备的形式来完成机载VHF导航设备的半实物仿真系统。PC机有着两部分功能,首先需要对VHF导航系统的数学模型进行Matlab仿真,让用户可以清楚的知道其中的原理,再次需要模拟VOR地面台,对下位机设备起到控制和监控的目的。下位机设备主要实现机载VHF导航设备的输出信号功能,如VOR方位角、航道偏离、向/背台等信号。通过PC机建立地面台数据库和控制界面对下位机系统各模块的统一管理,使系统协调、有序的工作。这种半实物仿真研究既可以作为航空电子系统仿真研究的重要组成部分,同时又可以为模拟飞行和通用测试的其它航电设备提供实时的VHF导航信号。
[Abstract]:Airborne VHF navigation equipment is an indispensable part of aircraft radio navigation. It not only provides important navigation information such as the VOR azimuth of aircraft. It can also provide guidance information to the pilot under the bad weather conditions and poor visibility to ensure the safe approach and landing of the aircraft. In view of the important role of airborne VHF navigation equipment, its research and development are increasing with the development of avionics, and the research depth is also increasing. At present, the research of airborne VHF navigation equipment is mainly carried out from two aspects: simulation and object. The simulation research is mainly to analyze the airborne VHF navigation equipment, to establish the mathematical model of the equipment, and then to reproduce the function of the equipment in the form of computer software, which plays an important role in the simulation flight. The real object research is to establish the ground station of VHF navigation equipment and record the real time airborne VHF navigation signal in the actual flight. In this paper, the design and implementation of airborne VHF navigation equipment is studied by hardware-in-the-loop simulation. Some signals that can not be obtained in the laboratory are replaced by simulation. On the one hand, the airborne VHF navigation system is analyzed, modeled and simulated. On the other hand, the output signal of airborne VHF navigation equipment is constructed so that it is as close as possible to the real equipment and becomes a physical signal that meets the aviation industry standard. Some parts of the airborne equipment of VOR navigation system and the onboard equipment of heading beacon of instrument landing system are common, so this paper mainly focuses on VOR navigation. In this paper, the hardware-in-the-loop simulation system of airborne VHF navigation equipment is completed in the form of PC and multiple lower computer devices. PC has two functions. Firstly, the mathematical model of VHF navigation system needs to be simulated by Matlab. So that the user can clearly understand the principle, again need to simulate the VOR ground station, to the lower computer equipment control and monitoring purposes. The lower computer equipment mainly realizes the output signal function of the airborne VHF navigation equipment, such as the VOR azimuth, the channel deviation, the direction / the back station and so on. The database of the ground station and the control interface are set up by PC to manage all the modules of the lower computer system, so that the system can work in a coordinated and orderly manner. This hardware-in-the-loop simulation study can not only be an important part of avionics system simulation research, but also provide real-time VHF navigation signal for other avionics equipment which simulates flight and general test.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V249.3;TN965

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