ULTRASENSITIVE SCALABLE PERIMETER DETECTION SYSTEM WITH DIRECTION FINDING CAPABILITY

A novel technique for perimeter detection (PD) system is proposed here for the first time, which is passive and undetectable (buried in ground), very sensitive (can measure sub-micron strain), fast (> 40 Hz), scalable to large encampments (> 2 km), low-cost and rugged, and has direction-finding capabilities (including a potential for finding angular direction and movement towards or away from camp). This technique promises a new generation of PD system, which has high sensitivity, large bandwidth, environmentally rugged, immune to electromagnetic interference (EMI), lightweight, small size, easy to install, and high scalability. This novel technique is insensitive to temperature effects, and can senses precise location of the intrusion within a few meters. The precise location and direction sensing, and undetectability of this technique would provide early warning without its knowledge to the intruder, and would increase the effectiveness to tackle the intruder by increasing the reaction time. This PD system can be strategic to the military for the protection of military encampments especially in foreign land, and for homeland defense applications such as for protecting nuclear plants, high-security buildings, airports and other key structures.