基于相位差分的跳频信号识别方法  

FH Signals Recognition Based on Phase Difference

作　　者：袁英俊[1] 黄知涛[1] 王岩[2] 周一宇[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073 [2]北京信息高技术研究所,北京100085

出　　处：《通信对抗》2010年第4期14-17,共4页Communication Countermeasures

摘　　要：利用相位差分方法分析了定频信号、线性调频（LMF）信号、MFSK信号和跳频信号的瞬时频率特征,提出了基于相位差分的跳频信号识别方法,给出了识别流程,仿真验证了不同信噪比下的识别性能,仿真结果表明,在信噪比大于4dB时跳频信号的识别率达到了90%以上。The characters of the instantaneous frequency of Invariable frequency signals, LFM signals, MFSK signals and FH signals are analyzed based on phase difference. An approach for recognizing the FH signals is then presented, followed by the recognition flow, Simulation results demonstrate the efficiency of the new method at various SNR. The probability of recognition reaches 90% or higher when the SNR is higher than 4dB.

关 键 词：跳频信号识别 相位差分 瞬时频率 

分 类 号：TN914.41[电子电信—通信与信息系统]