Electromagnetic Concealed Weapons Detection at a Distance

Pharad proposes to design a cost effective portable electromagnetic concealed weapons detection system that can be readily installed in a public areas, without interrupting the flow of human traffic. The system uses complex resonances for the identification of known targets, providing significant cost and size benefits over conventional imaging approaches. Our solution will be able to accurately detect and identify concealed weapons, metallic and non-metallic, at distances > 50 meters. Another unique advantage is that weapon detection is independent of the excitation manner. To minimize the size of the electromagnetic weapons identifier sensor we will use millimeter-wave frequencies as the interrogation signals, which also provides greater immunity to interference from other wireless services. In addition, a millimeter-wave based system provides a large available bandwidth that can be used to interrogate the target, increasing the resolution for target recognition. We will also incorporate efficient signal processing algorithms to ensure accurate determination of the presence of a known target.