Research
Our research group is at the forefront of developing innovative sensing, communication, and networking technologies to transform robotics, autonomous systems, and everyday devices. We tackle the full spectrum of challenges, from building an initial system prototype to understanding real problems, then developing a theoretical model, coming up with theoretical breakthroughs to practical prototype development for breakthroughs, and finally, deployment in the real world.
Research Themes
Millimeter wave radar provides an ideal solution for low-power, self-monitored, ultra accurate radar systems in various industrial applications, such as automotive vehicles, factory automation, drones, material handling, traffic monitoring, and surveillance.
Backscatter uses existing radio frequency signals, such as radio, television, and mobile telephony, to transmit data without a battery or power grid connection. Each such device harvest energy from the ambient signals. It uses that power to modify and reflect the signal with encoded data for communication.
Recent Research Projects
We present a lightweight system that enables accurate and realtime perception fusion with mmWave radar point clouds to improve driving safety. The key insight is that fine-grained spatial information provided by the radar present unique associations with all the vehicles even in two separate views.
To address the coverage limitation of existing wireless sensing technologies, we propose to utilize GPS signals for sensing and prototype the first GPS wireless sensing system on commercial GPS receiver modules. Comprehensive experiments demonstrate that the proposed system can realize meaningful sensing applications.
GPS services still suffer from intermittent positioning with poor accuracy in partially shadowed regions like urban canyons, flyover shadows, etc. We fill the gap with GPSMirror, the first GPS-strengthening system that works for unmodified smartphones with the assistance of newly-designed GPS backscatter tags.