Synergistic radar: a new approach to intrusion detection

Proceedings 1992 International Carnahan Conference on Security Technology: Crime Countermeasures Pub Date : 1992-10-14 DOI:10.1109/CCST.1992.253747

K. Harman, A. Gagnon

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引用次数: 5

Abstract

The authors introduce a new electromagnetic sensor technology called synergistic radar as it is utilized in the RadioGuard intrusion detection product. This passive line sensor detects disturbances to commercial FM radio signals caused by an intruder moving in proximity to an open transmission line relative to the same radio signal received on a central reference antenna. The product utilizes a totally new type open transmission line and associated signal processing technique so as to determine the location of the intruder along the sensor line and to permit the use of exactly the same cable structure along the entire cable length. This new open transmission line was designed to be used buried beneath a surface, laying on a surface or suspended in air. By simultaneously processing signals from two or more FM stations the RadioGuard product provides redundancy in case of station failure as well as improved performance due to frequency diversity. The general principles of synergistic radar, the design of the open transmission line, and the specific signal processing techniques used in RadioGuard are described. The performance of this new sensor in various applications is compared to that of competing products.<>

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协同雷达:一种新的入侵检测方法

作者介绍了一种新的电磁传感器技术，称为协同雷达，因为它被用于RadioGuard入侵检测产品。这种无源线路传感器检测商用调频无线电信号的干扰，这种干扰是由入侵者靠近开放的传输线引起的，相对于在中央参考天线上接收到的相同的无线电信号。该产品采用了一种全新的开放式传输线和相关的信号处理技术，以便沿传感器线路确定入侵者的位置，并允许沿整个电缆长度使用完全相同的电缆结构。这条新的开放式输电线路被设计成埋在地面下、铺设在地面上或悬浮在空中。通过同时处理来自两个或多个调频电台的信号，RadioGuard产品在电台故障的情况下提供冗余，以及由于频率分集而提高的性能。介绍了协同雷达的一般原理、开放式传输线的设计以及RadioGuard中使用的具体信号处理技术。这种新型传感器在各种应用中的性能与竞争产品进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings 1992 International Carnahan Conference on Security Technology: Crime Countermeasures

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