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民航事业的迅速发展,飞行流量不断增大,这对管制部门工作提出了更高的要求,对地空指挥通信的要求也不断提高。由于民航空中管制甚高频(VHF)通信系统的VHF设备实力及使用频点增高,各种无线电通信系统也越来越多,导致无线电互调干扰出现的频率也不断增加,给管制工作带来了严重的影响。因此,合理选择新增地空通信频率及排除无线电互调干扰的问题也成了民航空中管制甚高频(VHF)通信系统中要解决的难题。本文将从民航甚高频通信中出现的互调干扰进行分析,并提出了一些预防措施。
The rapid development of civil aviation and the continuous increase of flight flow have set higher requirements for the work of the regulatory agencies and the requirements for air and ground command and communications have also been continuously raised. Due to the increasing frequency and frequency of VHF equipment used in VHF VHF systems, various radiocommunication systems are also increasing, resulting in an increasing frequency of inter-radio interference and bringing regulatory control A serious impact. Therefore, the problem of choosing a new frequency of ground-to-air communications and excluding inter-radio interference has also become a problem to be solved in Civil Aviation Air Traffic Control VHF communications systems. This article analyzes the intermodulation interference in civil aviation VHF communications and puts forward some preventive measures.