一种基于分形维数的无线网卡信号指纹特征提取方法  

A Method of Fingerprints Extraction for WLAN Cards Based on Fractal Dimensions

作　　者：黄光泉[1] 王丰华[1] 黄知涛[1] 

机构地区：[1]国防科技大学,长沙410073

出　　处：《电子对抗》2012年第5期25-27,45,共4页Electronic Warfare

摘　　要：随着无线网络的广泛应用，无线网络安全问题也变得日益突出，特定辐射源识别（Specific Emitter Identification，SEI）概念的发展，为解决无线网络安全问题提供了一种新的技术途径。针对这一课题，文章重点研究无线网卡信号指纹特征的提取方法。以IEEE802．11b信号作为分析对象，提取IEEE802．11b信号的导言部分数据作为样本数据集合，以分形维数作为提取的指纹特征。文中设计实现了一个信号接收系统，用以采集IEEE802．11b信号数据。最后利用同一型号的3个无线网卡进行试验分析，试验结果验证了该方法的有效性．With the rapid proliferation of wireless network, the information security of wireless network has become a primary concern. In previous research, some novel approaches based on Specific Emitter Identification （SEI） have been proposed to improve wireless network security. In our work, we give priority to the method of fingerprints extraction for IEEES02.11b signals. In this paper, the preamble data obtained from IEEE802. 11b long format signals is used for fingerprints extraction. The fractal dimensions are then selected as the fingerprints. A data acquisition system is designed to capture IEEE802. 11b signals. The results of data analysis to 3 WLAN Cards indicate that the method demonstrated in this paper is available.

关 键 词：无线网卡 IEEE802.11b信号 分形维数 指纹特征 

分 类 号：TN925.93[电子电信—通信与信息系统]