The use of ground surveillance radar (GSR) is becoming an effective complementary element forperimeter intrusion detection and assessment systems. GSRs provide three impressiveenhancements: the ability to penetrate poor visibility environments, accurate ranging and trackingcapability, and integration of modern video systems for both assessment and surveillance. GSRsalso provide long-range (extending to several kilometers), wide area (360°) field-of-view (FOV)detection for a range of target sizes and speeds. This ability provides a significant improvement incapability when combined with more traditional perimeter intrusion detection and assessmentsystems.Sandia National Laboratories has performed laboratory and operational testing, system performanceanalysis, and installation of a commercially available STS-1400? frequency modulated continuouswave (FMCW), millimeter wave (MMW) GSR system. This system, manufactured by ICxTechnologies, is integrated with a DefendIR? visible/thermal infrared (IR), pan/tilt/zoom (PTZ)camera, also manufactured by ICx, to assess threats. The integrated system uses an adaptivethreshold to detect motion of objects that exceed an established background. Objects are trackedacross range and azimuth bins to determine the current/predicted path of targets and to provide analarm if the path intrudes into a designated area. Additional GSR units are networked in anoverlapping array to protect large areas and mitigate terrain irregularities.This paper summarizes the Sandia testing of the network-based STS-1400/DefendIR. Sandia’stesting demonstrates that a networked deployment of GSR units can provide an easily configurable,cost-effective solution for early detection and assessment of intruders over a broad area, wellbeyond the designated perimeter. The ICx system provides a significant advance in GSReffectiveness, primarily through the reduction of nuisance alarms.
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