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应用科学学报 ›› 2011, Vol. 29 ›› Issue (3): 256-260.doi: 10.3969/j.issn.0255-8297.2011.03.007

• 信号与信息处理 • 上一篇    下一篇

FSK/PSK复合调制雷达信号的识别

池文静， 陈健， 阔永红   

  1. 西安电子科技大学通信工程学院，西安710071
  • 收稿日期:2010-07-21 修回日期:2011-04-06 出版日期:2011-05-26 发布日期:2011-05-26
  • 作者简介:陈健，博士，教授，研究方向：信号处理、多媒体传感器网络，E-mail: jianchen@mail.xidian.edu.cn
  • 基金资助:

    高等学校学科创新引智计划基金(No.B08038)资助

Classification of FSK/PSK Hybrid Modulation Radar Signals

CHI Wen-jing, CHEN Jian, KUO Yong-hong   

  1. School of Telecommunication Engineering, Xidian University, Xi’an 710071, China
  • Received:2010-07-21 Revised:2011-04-06 Online:2011-05-26 Published:2011-05-26

PDF

1622

被引次数

5

摘要：

针对具有低截获概率特性的FSK/PSK复合调制雷达信号的特点，研究了FSK/PSK信号的识别，采用二叉树方法提取了基于信号幅度和相位的特征参数，研究并实现了PSK、FSK和FSK/PSK复合调制雷达信号的识别. 理论和仿真结果表明，所提出的算法在信噪比不小于5 dB时，FSK/PSK复合调制雷达信号的正确识别率达到了99%以上.

关键词: FSK/PSK复合调制, 信号识别, 相移键控, 连续相位频移键控, 相位不连续频移键控

Abstract:

Classification of FSK/PSK signals is studied in accordance with the characteristics of hybrid modulation signals that have low interception probability. Attention is focused on the identification of FSK/PSK, PSK and FSK signals using binary trees. The amplitude and phase related characteristic statistics are sent to the classifier to achieve classification. Simulation results show that the method is effective. The correct classification rate of FSK/PSK hybrid modulation signal is no less than 99% at 5 dB SNR.

Key words: FSK/PSK hybrid modulation signal, modulation classification, phase shift keying (PSK), continuous phase frequency shift keying (CPFSK), discrete phase frequency shift keying (DPFSK)

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