Physical Deterrent Barrier with Upward Looking Detection Sensor for Intruder Detection System.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A physical deterrent barrier is utilized as an integral part of an intruder detection sensor that provides surveillance of intrusions in the air space over the barrier. The sensor is a corner reflecting antenna that is coextensive with and mounts on the top of the barrier and is integrated into a barbed wire topped chain link fence by arranging appropriately spaced parallel strands of barbed wire into a V configuration so as to effect an electrical corner reflector at the system operating frequency. Author
- Electrical and Electronic Equipment
- Active and Passive Radar Detection and Equipment