I reported previously (July 2016) about Israel’s Arbe Robotics and its radar-based traffic control system for drones. Arbe is now developing 4D imaging technology for autonomous vehicles, based on radar instead of cameras and sensors. Arbe has just raised $2.5 million to fund development.

http://www.globes.co.il/en/article-car-radar-sensor-co-arbe-robotics-raises-25m-1001185730