泄漏电缆导波雷达周界入侵检测系统设计

Perimeter Intrusion Signal Processing Method Based on Leaky Coaxial Cable and Guided Radar

针对当前使用的周界入侵检测系统均不具备对入侵者的定位功能,设计了基于泄漏电缆导波雷达周界入侵检测系统,通过理论分析和仿真实验可知,运用互相关算法可将入侵发生定位到某一码元内,实现对入侵者的粗定位,在此基础上,进一步对硬件系统进行设计,系统主要包括系统主控、发射机和接收机三个部分,并对相关模块电路设计和所实现功能进行说明,将硬件系统置于室外水泥路面上,针对单目标入侵有无干扰两种情况下对系统进行现场测试,对实验数据进行分析和计算,结果表明:系统可实现对入侵者的精确定位,系统探测概率、误报率、漏报率以及定位精度与是否有干扰有关,单目标入侵无干扰时,系统工作性能表现最佳,定位精度为3.81m,大于理论值(3m)仅0.81m。

Currently,in view of the perimeter intrusion detection system do not have the ability to locate the intruders precisely.A perimeter intrusion detection system based on leaky coaxial cable and guided radar is designed,through the theoretical analysis and simulation experiment,it is known that to use cross-correlation algorithm to pinpoint the intruders within some code.To achieve intruders coarse positioning of the intruder,on this basis,a hardware system is designed,it mainly includes the system master,transmitter and receiver,and the related module circuit design and realizes its function.The hardware system is placed in outdoor of cement road surfaces.In view of the single objective invasion without interference in both cases the system for field test,the experimental data and calculation are analyzed.The results show that system can realize accurate positioning of the intruder,system detection probability and false alarm rate,non-response rates and location accuracy is related to whether there is interference,single objective invasion without interference,system works best performance,positioning accuracy is 3.81 m,is greater than the theoretical value only 0.81m（3m）.