Hydra: Exploiting Multipath Reflections for Enhacned Radar Field-of-view

This project aim to solve the problem: “Can millimeter-wave (mmWave) radars sense objects not directly illuminated by the radar - for instance, objects located outside the transmit beamwidth, behind occlusions, or placed fully behind the radar?” Traditionally, mmWave radars are limited to sense objects that are directly illuminated by the radar and scatter its signals directly back. In practice, however, radar signals scatter to other intermediate objects in the environment and undergo multiple bounces before being received back at the radar. We present Hydra, a framework to explicitly model and exploit multi-bounce paths for sensing, to sense beyond-field-of-view objects without prior knowledge of the environment.