The Hardware-in-loop Simulation Design And Implementation Of Airborne VHF Navigation Equipment

Airborne VHF navigation device is an indispensable part of aircraft radio navigation,as it not only provides aircraft azimuth of VOR navigation and other important information,can also provide guidance information to the driver in adverse weather conditions and poor visibility conditions,ensure the safety of aircraft approach and landing.Between airborne VHF navigation equipment important role for its research and development along with the increasing development of avionics,depth of research is also enhanced. At present, for airborne VHF navigation equipment research mainly from simulation and physical aspects.Simulation study is airborne VHF navigation equipment for analysis, a mathematical model of the device,and then use the form of a computer software reproduction function devices, which played a major significance in the simulated flight. Real research is to establish VHF navigation ground station equipment,the actual real-time flight records Airborne VHF navigation signals.This article is airborne VHF navigation equipment using semi-physical simulation study,some of the signal can not be obtained in the laboratory instead of in the form of simulation,while airborne VHF navigation system for analysis,modeling and simulation; on the other hand Construction of the airborne navigation VHF output signal to match the actual device as close as possible to make it meet the aviation industry standard physical signal.This semi-physical simulation study can be used as an important part of the avionics system simulation study, while they can provide real-time flight simulation VHF navigation signals and other common avionics test equipment.In this paper, PC,plus multiple forms of lower computer equipment to complete airborne VHF navigation equipment- Loop Simulation System.PC machine has two functions, you first need a mathematical model VHF navigation system's Matlab simulation,allowing users to know exactly where the principles need to simulate VOR ground station again, the next bit machine play equipment control and monitoring purposes. Lower machine equipment is mainly to achieve airborne VHF navigation device output signal functions, such as VOR azimuth, course deviation to / out bound signals. Establish ground control station and a database interface for each module controller system of unified management via a PC, the system coordination and orderly work.