多寻呼发射机互调干扰分析及避免方法的研究

Analysis of Intermodulated Interference among Paging Transmitters and the Study on Avoiding Interference Methods

针对我国大中城市中建有数十家大功率寻呼发射台及可能产生的互调干扰情况，进行了理论分析，得出了在ＦＳＫ调制情况下，三阶和五阶调制分量的最大频偏分别是正常寻呼发射信号的３和５倍等重要结论，并用实验验证了理论分析的正确性，提出了一些避免产生互调的方法，最后给出工程应用时的计算机辅助设计说明。

The intermodulated interference is analyzed in theory, which are produced by paging transmitters in the same metropolitan. Some useful formulas and methods which can avoid these intermodulated interference are given. Especially, the frequency deviations of the intermodulated interference are three to five times of that of paging signals. The CAD program for engineering is developed. All results are proved by the experiment and some of them have been used by Radio Management Committee.