CAJ | 학술논문

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。
본문통과대상용수자신호적빈보급고차방보진행분석,통과신호빈역구별제취일조유효특정대상용수자신호진행분류。저조특정제취간단,차무수임하선험지식。방진결과표명,재신조비불저우0dB적정황하,정학식별솔체도95%이상。
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%.