通信电台三阶互调信号特征及解调产物研究  

Research on the Third-order Intermodulation Signal and Demodulation Product of Radio Communication

作　　者：袁仕继 侯小江 张广吉 

机构地区：[1]洛阳电子装备试验中心,河南济源459000

出　　处：《电声技术》2014年第9期64-67,73,共5页Audio Engineering

基　　金：中国科学院国防科技创新基金项目(CXJJ-11-M07)

摘　　要：电台之间互调干扰问题影响着通信对抗试验的开展,其中三阶互调干扰对装备的影响通常无法避免。对三阶互调干扰的信号特征进行研究,推导出不同调制样式的的三阶互调产物的包络检波和鉴频器解调产物的数学表达式,某些调制的信号互调产物可以使用对应的解调方式获得干扰源。最后利用实测数据验证了某些调制的信号互调产物与干扰源信号特征相似。The intermodulation interference of radio affect the confrontation countermeasure test, especially the third-order intermodulation interference on equipment often can not be avoided. Mathematical expressions are derived for different modu- lation of three order intermodulation product envelope demodulation and frequency demodulation products and some of the modulation signal corresponding to the intermodulation products can be obtained by demodulating the interference source based on third-order intermodulation interference signal characteristics. Finally, the measured data to verify some of the modulated signal intermodulation products and noise source signal characteristics similar.

关 键 词：三阶互调 调制解调 通信对抗 调幅电台 

分 类 号：TN828[电子电信—信息与通信工程]