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针对市面上泄漏电缆入侵检测系统探测精度低、误报率高、数据无法存储问题,提出了一种基于恒虚警的定位式泄漏电缆入侵检测技术。本文采用相关算法用于解决单一频率探测精度低的问题,同时采用单元平均恒虚警和删除式恒虚警算法解决固定门限误报率高的问题。最后,本文进行了在实际应用环境中检测系统的性能测试实验。测试结果表明,入侵检测系统的探测精度为2米,误报率低于10%,不需要前期矫正就可以自适应于不同背景环境噪声,具有良好的应用前景。
Aiming at the problems of low detection accuracy, high false alarm rate and inability to store data, the leakage cable intrusion detection system on the market has proposed a positioning leakage cable intrusion detection technology based on CFAR. In this paper, the relevant algorithm is used to solve the problem of single frequency detection accuracy is low, while using the unit-average CFAR and delete CFAR algorithm to solve the problem of high fixed false alarm rate. Finally, this article has carried on the performance test experiment which tests the system in the actual application environment. The test results show that the intrusion detection system has a detection accuracy of 2 meters and a false positive rate of less than 10%. It can adapt to different background environmental noises without prior correction and has good application prospect.