Imec Unveils Personal Wearable MIMO Radar System for Gesture Recognition




International R&D hub Imec has developed a highly sensitive wearable radar system for gesture recognition, which could let you interact with mobile devices using hand gestures, or the ability to monitor patients remotely. Imec’s MIMO (Multiple Input/Multiple Output) radar-on-chip platform operates at 140GHz, meaning it can take advantage of millimeter-scale resolution, giving it the ability to measure small or micro-movements.

The 140GHz MIMO wearable radar operates at up to 10m in range, has a 15m range resolution and a 10GHz RF bandwidth. (📷: Imec)

“This opens new opportunities, for example, enabling gesture recognition for intuitive man-machine interactions. Think about the AR/VR space, where the new radar can support intuitive interaction with virtual objects. Gesture recognition can potentially also enable intuitive device control — complementary to existing interfaces such as voice control or smart touch screens.” — Barend van Liempd, Imec R&D Manager

The MIMO chip detects motion by emitting a pulse of radiation and measuring the time it takes to be reflected back. Imec engineers incorporated machine learning technology based on a multi-layer neural network, which allows the radar to detect and classify micro-motions based on Doppler information, and can do so at a range of up to 10-meters, at a resolution of 15mm.

The MIMO chip was designed using a single transmitter with on-chip antennas and four receivers; however, Imec plans to upgrade their platform using four transmitters utilizing a new generation of radar chips currently in development. There are also looking at ways to expand the number of chips used to build a MIMO system with even larger arrays. Beyond gesturing, Imec states that their radar-on-chip technology could be used for medical applications, including in-car vital sign monitoring systems that monitor a driver’s state, including heart or epilepsy attacks.


Imec Unveils Personal Wearable MIMO Radar System for Gesture Recognition was originally published in Hackster Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.





Original article: Imec Unveils Personal Wearable MIMO Radar System for Gesture Recognition
Author: Cabe Atwell