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A High-Resolution Leaky Coaxial Cable Sensor Using a Wideband Chaotic Signal
Hang Xu1,2, Jun Qiao3,4, Jianguo Zhang5,6
1Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China. xuhang@tyut.edu.cn.
Sensors (Basel, Switzerland)
|November 30, 2018
Summary
This study introduces a high-resolution leaky coaxial cable (LCX) sensor for perimeter intrusion detection. The novel sensor system accurately locates intruders using chaotic signals and demonstrates robust performance in noisy environments.
Area of Science:
- Electrical Engineering
- Sensor Technology
- Signal Processing
Background:
- Perimeter intrusion detection systems require high accuracy and reliability.
- Traditional sensors face challenges with environmental noise and multiple targets.
Purpose of the Study:
- To propose and experimentally demonstrate a high-resolution leaky coaxial cable (LCX) sensor for perimeter intrusion detection.
- To evaluate the sensor's performance in detecting single and multiple intruders, its resolution, dynamic range, and anti-interference capabilities.
Main Methods:
- Utilizing a wideband Boolean-chaos signal as the probe signal.
- Employing a pair of leaky coaxial cables (LCXs) for signal transmission and echo reception.
- Correlating chaotic echo signals with delayed duplicates to locate intrusions.
Main Results:
- The proposed LCX sensor system achieved a range resolution of 30 cm and a dynamic range of 50 dB.
- Simultaneous detection of multiple intruders was successfully demonstrated.
- The sensor exhibited excellent anti-interference performance against noise and uncorrelated chaotic signals.
Conclusions:
- The developed LCX sensor offers a high-resolution and robust solution for perimeter intrusion detection.
- Its ability to handle multiple targets and adverse environmental conditions makes it suitable for practical security applications.
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