传感技术学报2018，Vol.31Issue(1)：103-109,7.DOI:10.3969/j.issn.1004-1699.2018.01.018
基于信道状态信息相位差的人员入侵检测方法
Human Intrusion Detection Based on Phase Difference with Channel State Information
摘要
Abstract
Existing human intrusion detection methods based on Wi-Fi signalslack of utilization on phase informa-tion,which limit both the scope of application and effective range of intrusion detection. This paper discusses the a-vailability of phase difference with CSI and adopts a light-weight indicator to sense the changes of statesin wireless environments. In order to detect stationary intruders,the recurrence quality analysis is adopted to select the most pe-riodical subcarrier and discrete wavelet transformation is utilized to extract breathe signals in certain frequency band. Experimental results provide a true detection rate of around 90％ for both moving and stationary intruders in two scenarios.关键词
信道状态信息/相位差/入侵检测/无线感知Key words
channel state information( CSI)/phase difference/intrusion detection/wireless sensing分类
信息技术与安全科学引用本文复制引用
周启臻,邢建春,杨启亮..基于信道状态信息相位差的人员入侵检测方法[J].传感技术学报,2018,31(1):103-109,7.基金项目
项目来源:江苏省自然科学基金项目( BK20151451) （ BK20151451）
