一、引言民航 VHF 对空通信一直是空中交通管制中地面管制员与空中飞行员进行话音联络的重要手段,在民航短波通信正逐步减少或取消的今天,VHF 对空通信已成为民航对空指挥通信的主要手段,其通信质量的好坏和可靠程度直接影响到空中交通的安全。特别是,随着空中交通飞行流量的增加,所需 VHF 通信波道不断增多,而各种地面电台的无线电信号和噪音的影响越来越大,如何解决VHF 通信中的电磁兼容性,以保证对 I. INTRODUCTION Civil Aviation VHF air-to-air communication has always been an important means of voice contact between ground controllers and air pilots in air traffic control. Today, short-wave civil aviation communications are gradually reduced or canceled. Today, VHF air-to-air communication has become the air command and communication The main means of communication quality of its quality and reliability of a direct impact on the safety of air traffic. In particular, as air traffic flow increases, the number of VHF communication channels required increases, and radio signals and noise from various terrestrial stations become more and more affected. How to solve the electromagnetic compatibility in VHF communication is ensured Correct