调频广播与航空无线电业务A类干扰分析方法

Analysis Method of Type A Interference between FM Broadcasting and Aeronautical Services

本文描述了调频广播业务与航空无线电业务之间干扰的现状以及目前相关研究机构对两种业务间电磁兼容分析的研究情况。文章以国际电联ITU-R SM.1009-1建议书为理论基础,分析了调频广播与航空无线电业务电磁兼容A类干扰产生机理,根据A类干扰是广播多信号互调产生实际电波干扰的特点给出了A类干扰电磁兼容分析的计算方法,并根据场强及保护率等相关参数推导出防护距离,进一步简化了分析流程。

With development of FM broadcasting services and civil aviation business, FM radio's interference to aeronautical services becomes more serious and threats the safe operation of aviation sector. This paper describes the status of interference between FM broadcasting and aeronautical services, introduces principle of interference, and proposes method to improve availability of interference analysis. It is for radio management department's compatibility analysis' reference.