基于小波脊线的射频信号调制类型识别  

Modulation Pattern Recognition of RF Signals Based on Wavelet-ridge Method

作　　者：李平[1] 唐宏[1] 李哲[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《无线电工程》2010年第9期22-25,共4页Radio Engineering

摘　　要：针对已有算法应用的局限性,提出了一种根据小波脊线特征的差异来识别射频信号调制类型的新方法。在充分分析小波脊线原理的基础上,对4类典型射频信号的小波脊线特征进行分析,根据分析结果,给出调制类型自动识别流程。仿真结果表明,在较低信噪比下,该方法对各类射频信号的调制类型有较高的正确识别率,从而验证了该方法的正确性和有效性。Considering the limitation of existing algorithms, a novel method based on the difference of wavelet-ridge characteristics is proposed to recognize the modulation pattern of RF signals. The wavelet-ridge characteristics of four typical RF signals are deeply analyzed after a thorough study on the principle of wavelet-ridge. The automatic recognition flow is given based on the analysis results. The simulation results show that this method has high recognition ratio at low SNR, which validates the correctness and effectiveness of this method.

关 键 词：小波脊线 射频信号 调制类型 自动识别 

分 类 号：TN911.3[电子电信—通信与信息系统] TN957.51[电子电信—信息与通信工程]