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基于谱分析的信号分类算法研究
引用本文:谢芳娟,许仙明,朱淑云. 基于谱分析的信号分类算法研究[J]. 适用技术之窗, 2012, 0(3): 85-87
作者姓名:谢芳娟  许仙明  朱淑云
作者单位:南昌大学科学技术学院,江西南昌330029
摘    要:本文通过对常用数字信号的频谱及高次方谱进行分析,通过信号频域区别提取一组有效特征对常用数字信号进行分类。这组特征提取简单,且无需任何先验知识。仿真结果表明,在信噪比不低于0dB的情况下,正确识别率达到95%以上。

关 键 词:数字信号  频谱  高次方谱  信号分类  调制识别

Study of Algorithms of Signal Classification Based on Spectrum Analysis
Xie Fangjuan Xu Xianming Zhu Shuyun. Study of Algorithms of Signal Classification Based on Spectrum Analysis[J]. Science & Technology Plaza, 2012, 0(3): 85-87
Authors:Xie Fangjuan Xu Xianming Zhu Shuyun
Affiliation:Xie Fangjuan Xu Xianming Zhu Shuyun(College of Science and Technology,Nanchang University,Jiangxi Nanchang 330029)
Abstract:This paper analyzes the commonly used digital signal spectrum and high order spectrum,and extracts set of effective features by the difference between the frequency domain and then classifies the commonly used digital signal.This group of features are easy to extract,and need no prior knowledge of signals.The simulation results show that,in the signal-to-noise ratio not less than 0 dB cases,the correct recognition rate is higher than 95%.
Keywords:Digital Signal  Spectrum  High Order Spectrum  Signal Classification  Modulation Recognition
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