民航地空甚高频通信系统分析及测试

Analysis and Test of Civil Aviation Ground-to-Air VHF Communication System

在描述民航地空甚高频(Very High Frequency,VHF)通信系统作用的基础上,对地空甚高频VHF通信系统构成进行了简要介绍,重点研究分析了VHF通信系统信息传输模型、机载设备、地面设备,估算了VHF通信链路传输距离,对某地VHF通信系统中收发同址、收发异址2类地面设备进行了测试,测试结果满足民航相关标准要求,对于民航地空VHF通信系统可靠运行具有重要意义。

On the basis of describing the function of civil aviation ground-to-air Very High Frequency(VHF)communication system,the composition of ground-to-air VHF communication system is briefly introduced.The information transmission model,airborne equipment and ground equipment of VHF communication system are studied and analyzed,and the transmission distance of VHF communication link is estimated.Two types of ground equipment transmitter and receiver at the same place,transmitter and receiver at the different places in a VHF communication system are tested.The test results meet the requirements of relevant civil aviation standards,which is of great significance to the reliable operation of civil aviation ground-to-air VHF communication system.