摘要
提出了一种新的基于星座图的通信辐射源个体识别方法﹒首先采用频域能量检测法检测突发信号;然后进行载波恢复、符号速率估计和定时估计;最后在此基础上进行星座图提取,并通过Hausdorff距离进行相似性度量,识别信号发射设备﹒以QPSK信号发射极为例进行了实验,实验结果表明,所提方法可以很方便地进行通信设备识别,为研制通信SEI设备提供了新的思路﹒
A new method for communication SEI based on constellation diagram is proposed. Firstly, the frequency domain energy detection method is used to detect the burst signals, and then the carrier recovery, symbol rate estimation and timing estimation are carried out. Finally, the constellation is obtained based on the results above, and the similarity measurement is carried out through Hausdorff distance to identify the signal transmitting device. The experiments are carried out with QPSK signal emitter, and the experimental results show that the proposed method can facilitate the identification of communication equipment, and it provides a new way for developing communication SEI devices.
出处
《湖南城市学院学报（自然科学版）》
CAS
2017年第5期51-55,共5页
Journal of Hunan City University:Natural Science
基金
国家安全重大基础研究项目(973)(613XXX0301)
湖南省教育厅科研项目(17C0043)
关键词
辐射源个体识别
能量检测
载波恢复
星座图提取
Specific Emitter Identification （SEI）
energy detection
carrier recovery
constellation extraction
