一种使用宽带混沌信号的高分辨率漏同轴电缆传感器。

A High-Resolution Leaky Coaxial Cable Sensor Using a Wideband Chaotic Signal.

机构信息

Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.

College of Physics & Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China.

出版信息

Sensors (Basel). 2018 Nov 27;18(12):4154. doi: 10.3390/s18124154.

DOI:10.3390/s18124154

PMID:30486361

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6308410/

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.

摘要

提出并实验验证了一种用于周界入侵探测的高分辨率泄漏同轴电缆（LCX）传感器。在我们提出的传感器系统中，宽带布尔混沌信号被用作探测信号，一对泄漏同轴电缆（LCX）分别用于传输探测信号和接收回波信号。通过将混沌回波信号与其延迟副本相关，并比较入侵前后的相关轨迹，可以精确地定位入侵者。实验结果表明，该传感器可以同时检测多个入侵者。距离分辨率达到 30 厘米，而动态范围可以达到 50dB。此外，该传感器对噪声和不相关的混沌信号具有优异的抗干扰性能，使其在存在噪声或多个混沌 LCX 传感器协作的检测环境中表现出稳健的性能。