单载波与多载波调制系统中调制识别算法研究  

Research of modulation recognition algorithm in the single carrier and multicarrier modulation system

作　　者：力智 胡学龙[2] 

机构地区：[1]扬州通信设备有限公司,扬州225012 [2]扬州大学信息工程学院,扬州225127

出　　处：《国外电子测量技术》2016年第11期73-75,共3页Foreign Electronic Measurement Technology

摘　　要：首先叙述了调制识别技术在通信对抗中的研究意义、单载波与多载波调制的通信调制系统和灵巧通信对抗,然后介绍了无线数字信号的调制样式识别的研究现状。为了能够为灵巧通信对抗打下良好的基础,很好地实现单载波与多载波调制系统中信号特征的类间、类内识别是十分重要的。提出了一种用于识别串行单载波和并行多载波的调制样式识别算法,此算法能够对快变瑞利信道下完成MPSK和OFDM的调制样式识别。仿真结果表明,在信噪比为7dB时,识别正确率可以达到90%以上。Firstly, this paper describes the significance of research on modulation identification techniques in communica- tion countermeasure, the single carrier and multicarrier communication modulation system, the smart communication countermeasure. Then, it introduces the actuality of research on modulation identification about wireless digital commu- nication. For making a good foundation for the smart commufiication, it is very necessary to realize the signal features＇ inter-class and intra-class identification well in the single carrier and multicarrier modulation system. This paper proposes a new algorithm for modulation identification about the single carrier and multicarrier. The algorithm is able to complete the signal features＇ modulation identification over the time-varying Rayleigh channel between OFDM and MPSK. Simu- lation results demonstrate an over 90% correct classification rate could be reached when the SNR is above 7dB.

关 键 词：单载波 多载波 高阶累积量 OFDM MPSK 

分 类 号：TN914[电子电信—通信与信息系统]