基于漏泄同轴电缆的周界入侵系统定位技术研究

Research on the Location Technology of Perimeter Intrusion System Based on Leaky Coaxial Cable

为了解决基于漏泄同轴电缆的周界入侵系统定位精度低的问题,提高周界入侵系统的性能,文章采用CST联合ADS、Matlab,构建了一套协同仿真软件系统,为基于漏泄同轴电缆传感器的周界入侵系统的精确定位功能提供仿真设计。通过协同仿真软件系统,计算有人入侵的接收信号与发射信号间的时延,得到收发信号间的频差;继而利用该频差仿真计算入侵者的位置,与预置的实际位置比较得到定位误差。定位误差的仿真结果及实测结果表明,该方法能将定位误差控制在1m以内,具有很好的定位精度。

In order to solve the problem of low positioning accuracy of perimeter intrusion system based on leaky coaxial cable and improve the performance of perimeter intrusion system, in this paper, the simulators CST, ADS and Matlab are combined to build a co-simulation software system to provide simulation and design for the precise positioning function of perimeter intrusion system based on leaky coaxial cable sensor. By the system of co-simulation software, the time delay between the received signal and the transmitted signal is calculated, and the frequency difference between the received signal and the transmitted signal is obtained. Then the frequency difference is used to calculate the position of the intruder, and the positioning error is obtained by comparison with the preset actual position. The simulation results of positioning errors and measured results show that this method can control the positioning error within 1 m with good positioning accuracy.