DVOR VRB-52D设备晶振故障排查的分析和研究

Analysis and Research of DVOR VRB-52D Equipment Crystal Oscillator Troubleshooting

多普勒甚高频全向信标(DVOR)是现代民航导航系统的重要组成部分,其工作的基本原理是为机载接收机提供一个空间合成的无线电信号,然后经过接收机解调后,得出飞机相对于该地面DVOR台站的磁方位,即VOR方位。DVOR设备常与测距仪(DME)合装,共同为民航飞机提供方位和距离信息,以完成极坐标定位(ρ-θ定位)。本文针对国内某导航台的DVOR VRB-52D设备晶振故障导致单机关机的案例,浅析DVOR VRB-52D设备在晶振故障时的现象分析与排查思路。

Doppler Very High Frequency Omnidirectional Range (DVOR) is an important part of the navaigation system of the modern civil aviation. The receiver installed on the aircraft is able to receive useful signals, which is provided by the DVOR. The signals can be demodulated into the magnetic bearing of the aircraft relative to the DVOR station on the ground. The DVOR is usually combined with the Distance Measure Equipment (DME) to provide bearing and distance for the aircraft, which to complete polar coordinate positioning (ρ-θ positioning). Aiming at the case that the crystal oscillator failure of DVOR VRB-52D equipment in a navigation station leads to the shutdown of the equipment, this paper discuss the analysis and troubleshooting of DVOR VRB-52D equipment in the crystal oscillator failure.