Study On The Method Of Mutual Interference Monitoring And Control Of The Same Frequency And Different Sites

With the rapid development of economy, people travel and transport of goods by air flights gradually realized, rapid growth requires a large number of soft, hard to follow, as an important factor of flight activities, air traffic control departments in the development of personnel and communication equipment has also ushered in the station, air ground communications used for convenient ground control personnel with the vehicle communication gradually increased, a number of stations in the same frequency gradually realize the dual or multiple coverage, site, frequency increases as the air ground communication to provide additional security at the same time, also interfere with each other for potential problems, this paper mainly studies how to make the same frequency and different access radio play its due benefits at the same time, according to the actual situation, choose some approaches and methods to monitor and control the mutual interference, provide a more safe and effective environment for aircraft use.Based on the analysis of the structure of ATC air ground communication network, piecewise find reasons for interference, really to different device characteristics, find proper solutions, using filter and radio characteristics, improve wireless equipment front-end selectivity, using hardware and programming tool, to detect the signal transmission, the interference signal of cutting and other backup routing switch, and ultimately to the interference signal detection and control, using VoIP technology, to avoid interference in the transmission process.