Using an asymmetric approach to perimeter security is more efficient and cost-effective. The approach, advocated by Applied Research Associates (ARA), involves strategic deployment of the company’s Pathfinder seismic-acoustic sensors. Asymmetric placement of the sensors is in contrast to typical perimeter security systems, which are linear: Sensors are distributed at specific intervals along a perimeter and require infrastructure to communicate back to a control centre.
Instead, asymmetric placement involves fewer sensors that are hidden strategically and tactically in areas to address known vulnerabilities and threats. At a border, small, covert sensors – about the size of two hockey pucks – might be positioned in a “dead space” that isn’t otherwise monitored, or along a specific route intruders are known...