UCL wifi innovation which can see through walls wins NI Engineering Impact Award

Professor Karl Woodbridge and his team from UCL Electronic and Electrical Engineering, including Dr Kevin Chetty and Dr Bo Tan, have proved the concept that local wifi signals can be used to monitor moving objects and bodies that are otherwise visually obscured. Although fundamentally similar to traditional radar systems, their novel approach is entirely passive-utilizing the wireless signals that already swamp our urban airways.

This technology has a wide range of applications from healthcare monitoring, security and emergency disaster relief to finding earthquake survivors in fallen buildings. The team produced a patented passive radar system using multiple NI Universal Software Radio Peripherals (USRPs) and LabVIEW to fuel their cutting-edge research. The USRPs, which can operate over wide frequency bands, acquire radio frequency (RF) signals on several channels. They used LabVIEW to design and iterate the advanced signal processing used to detect minute Doppler shifts in the acquired wireless signals to sense movement.

For further information about this technology, please contact Dr Vassilios Albanis, Business Manager, Physical Science and Engineering. Email: [email protected]