航空无线电导航系统仿真研究

航空无线电导航系统的全数字仿真是飞行检验仿真的重要基础,也是通信系统综合仿真系统的重要组成部分。分析了航空无线电导航系统及其仿真的特点和Matlab/Simulink在建模仿真中的特点,以及它与高层体系结构HLA的兼容性方面所表现出的强大的可扩展性和可重用性的优点,说明了在通信系统综合仿真系统中,利用Matlab/Simulink对无线电导航系统进行建模仿真的可行性,并利用Matlab/Simulink软件对航空无线电导航系统的仿真进行了初步探讨,建立了米波仪表着陆系统的地面航向信标、天线分配网络、空间信号合成和机载接收分系统的Simulink模型,得出了正确的波形。提出了将仪表着陆系统的Simulink模型加入基于HLA的通信系统综合仿真系统联邦的解决方案。

Study in the Simulation of Aviation Wireless Navigation System

The software simulation of aviation wireless navigation system is the basis of the simulation of flight check,and also is an important component of comprehensive simulation system of air force communication system.The characteristics of aviation wireless navigation system and of the simulation of it are analyzed,and simultaneously the characteristics of Matlab/Simulink in modeling simulation are analyzed.At the same time,its extensibility and reusability representing in the compatibility with HLA are also analyzed.An initiative research of the simulation of aviation wireless navigation system is made by using Matlab/Simulink.The Simulink models of the subsystems of ground course beacon,antenna distribution network,spatial signal synthesis and receiver onboard subsystems of Instrument Landing System are built and the correct signal wave-form produced by the simulation system is obtained.A resolution scheme about joining the Simulink model of Instrument Landing System into the comprehensive simulation system federation of air force communication system is put forward.