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The company Patriot One Technologies is marketing a system called PatScan using AI and microwave technology to detected concealed weapons (gun, knives, explosives) without imaging (Cognitive Microwave Radar).
https://patriot1tech.com/solutions/how-it-works/
Apparently it detects reflected microwaves from a person and analyzes the spectrum for telltale signatures based on scans of actual weapons. It is said to have a 91% true positive for a single direction scan which can be improved with scans from multiple directions. It is low power, small , and easily concealed.
https://patriot1tech.com/solutions/how-it-works/
Apparently it detects reflected microwaves from a person and analyzes the spectrum for telltale signatures based on scans of actual weapons. It is said to have a 91% true positive for a single direction scan which can be improved with scans from multiple directions. It is low power, small , and easily concealed.