Liberty Defense
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FCC Clears Way for 3D Radar Security System

March 16, 2022
The HEXWAVE security imaging system teams 3D radar with AI signal processing to scan quickly and safely anyone walking past it for concealed metallic and non-metallic objects.

The U.S. Federal Communications Commission (FCC) recently approved the use of a radar-based imaging system for detection of weapons and other objects hidden on a scanned person. The system, the HEXWAVE security system from Liberty Defense, uses low-power three-dimensional (3D) radar imaging and artificial intelligence (AI) to quickly scan someone passing it (see the figure). It can detect metallic and non-metallic concealed weapons and other objects during scans at high-throughput checkpoints, enabling “socially distanced” contactless security at indoor and outdoor locations without removal of coats or divestiture of keys and other safe objects. A recent order issued by the FCC approves the system for operation and represents a major step towards final certification and commercialization of the technology.

The HEXWAVE security system furnishes accurate, reliable detection by means of radar, with AI assisting automatic threat detection and in the recognition of known objects such as keys. Its high throughput  enables early threat detection, around the perimeter of events, without inconveniencing patrons with any form of waiting times at checkpoints. The FCC order includes a waiver of rules governing the use of unlicensed ultra-wideband (UWB) devices to enable operation of the threat detection system. The waiver explains that operation of the system under its intended conditions poses no danger of interference to existing communications devices, but that the system provides significant benefits in protecting Americans against dangers from concealed threats in public venues.

“This is a significant achievement and is the culmination of a process started over two years ago,” says Liberty President and chief technology officer Michael Lanzaro. “We see this action as further validation of our threat screening technology. As we transition into our build of beta systems and subsequent trials, we can do so with the confidence of having a robust platform that meets the screening performance and regulatory requirements customers expect and demand.”

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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