Abstract
A high-resolution leaky coaxial cable (LCX) sensor for perimeter intrusion detection is proposed and experimentally demonstrated. In our proposed sensor system, a wideband Boolean-chaos signal is used as the probe signal, and a pair of leaky coaxial cables (LCXs) is applied for transmitting the probe signal and receiving the echo signal, respectively. By correlating the chaotic echo signal with its delayed duplicate and comparing the correlation traces before and after intrusion, the intruder can be accurately located. Experimental results demonstrate the proposed sensor can simultaneously detect multiple intruders. The range resolution reaches 30 cm, whilst the dynamic range can achieve 50 dB. In addition, this sensor possesses the excellent anti-interference performance to the noise and uncorrelated chaotic signal, which makes it show robust performance in the detection environment with noise or multiple chaotic LCX sensors cooperation.
Highlights
Perimeter intrusion detection technologies have been widely applied for high-level security in important places such as railway lines, airport runways, military bases, etc
leaky coaxial cable (LCX) sensors were first introduced for outdoor intrusion detection in the late 1970s
We propose a high-resolution intrusion detection sensor based on a wideband chaotic signal and LCXs
Summary
Hang Xu 1,2, * , Jun Qiao 1,2 , Jianguo Zhang 1,2 , Hong Han 1,2 , Jingxia Li 1,2 , Li Liu 1,2 and Bingjie Wang 1,2. Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi. College of Physics & Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China. Received: 31 October 2018; Accepted: 23 November 2018; Published: 27 November 2018
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