机载无线电接口组件仿真技术的研究

发布时间：2019-01-12 15:27

【摘要】：在航空电子系统(简称“航电系统”)研发过程中,经常会出现某些航电设备的开发缺少其他航电设备或系统的协同支持,此时,有必要开发航电仿真系统来模拟真实航电设备或系统运行环境。传统航电仿真系统的研发一般是根据特定仿真需求开发专用的仿真软件,这使得当被仿真设备或系统的需求发生变化时需要对仿真软件进行大量修改,甚至重新进行系统软件设计,从而使得仿真软件的可重用性和可维护性较差,降低了系统开发效率。因此,对航电仿真相关技术进行研究,开发一个具有一定通用性、便于维护的航电仿真平台具有重要的现实意义。无线电接口组件(Radio Interface Unit,简称RIU)是国产新一代飞机通信导航系统的数据控制中心,本文以RIU作为仿真载体,对航电仿真技术进行了深入研究,采用层次化、模块化以及面向对象思想设计了具有一定可扩展性和可配置性的RIU半实物仿真系统,该系统一定程度上可以作为一个通用性的航电仿真系统开发平台。本文首先建立了RIU接口属性模型和功能模型,以此为基础对RIU半实物仿真系统进行了总体方案设计,通过将系统划分为功能仿真系统和综合监控系统,使得功能仿真和总线监控能够同步进行,提高了仿真系统运行效率。之后,对两个子系统进行了软件层次划分和模块划分,其中功能仿真系统被划分为运输层、缓冲层和功能应用层,由于缓冲层屏蔽了底层物理数据收发的细节并能向功能应用层提供统一的数据存取接口,因此在开发同类航电仿真系统时只需根据仿真需求对功能应用层进行实现即可,从而可极大减少航电仿真系统开发过程中一些重复性工作,提高了仿真系统的通用性。接着本文运用面向对象思想,在Visual Studio 2008开发环境中,使用MFC库,采用C++语言对两个子系统进行了详细设计与实现。文章最后在基于QAR数据的飞行环境模拟器中对RIU半实物仿真系统进行了测试,验证了其预期功能。
[Abstract]:In the research and development of avionics system ("avionics system"), the development of some avionics equipment often lacks the collaborative support of other avionics equipment or systems. It is necessary to develop avionics simulation system to simulate real avionics equipment or system operation environment. The research and development of traditional avionics simulation system is to develop special simulation software according to specific simulation requirements, which makes it necessary to modify the simulation software when the requirements of the simulation equipment or system change. Even redesigning the system software makes the reusability and maintainability of the simulation software worse and reduces the system development efficiency. Therefore, it is of great practical significance to study the related technology of avionics simulation and to develop a avionics simulation platform which is universal and easy to maintain. Radio interface component (Radio Interface Unit, (RIU) is the data control center of the new generation aircraft communication and navigation system in China. In this paper, the avionics simulation technology is deeply studied with RIU as the simulation carrier, and the hierarchy is adopted. Modularization and object oriented idea are used to design the RIU hardware-in-the-loop simulation system which is extensible and configurable. The system can be used as a general avionics simulation system development platform to some extent. In this paper, the attribute model and function model of RIU interface are established firstly, based on which the overall scheme of RIU hardware-in-the-loop simulation system is designed, and the system is divided into functional simulation system and integrated monitoring system. The function simulation and bus monitoring can be carried out synchronously, and the efficiency of simulation system is improved. After that, the two subsystems are divided into software hierarchy and module, in which the functional simulation system is divided into transport layer, buffer layer and functional application layer. Because the buffer layer shields the details of physical data receiving and sending and can provide a unified data access interface to the functional application layer, it is only necessary to implement the functional application layer according to the simulation requirements when developing the similar avionics simulation system. Therefore, the repeatability of avionics simulation system can be greatly reduced and the generality of the simulation system can be improved. Then, using the object oriented thought, in the Visual Studio 2008 development environment, using the MFC library, using C language to carry on the detailed design and the realization to the two subsystems. Finally, the RIU hardware-in-the-loop simulation system is tested in the flight environment simulator based on QAR data, and its expected function is verified.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V243

【参考文献】