短波信道下的信号调制方式识别  

Signal Modulation Mode Classification in HF Channel

作　　者：钟志明[1] 徐以涛[1] 邱炜[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007

出　　处：《电讯技术》2009年第4期62-64,共3页Telecommunication Engineering

摘　　要：针对短波信道条件下的通信信号调制识别问题,提取了以信号功率谱的各种特征为主要特征参数,使用判决树分类器,对基于W atterson信道模型下的九类常用短波信号进行调制识别。仿真结果表明,所选取的特征参数具有很好的稳健性,在中等短波信道且在低信噪比条件下有较高的正确识别率,且方法简单便于工程实现。Several characteristics of signal power spectrum are extracted as the main feature parameters for the modulation classification in HF channel. The method can classify nine common HF signals based on Watterson channel model with the decision - tree classifier. The simulation results indicate that the feature parameters are robust, and the high correct classification rate is achieved even under the condition of moderate HF channel and low signal -to -noise ratio（SNR） ,moreover the method is simple and convenient for engineering realization.

关 键 词：通信对抗 短波信道 调制识别 功率谱 

分 类 号：TN911[电子电信—通信与信息系统]