In today's automotive and aerial sensors landsccape there is a huge blind spot that has severely restricted ability to detect, track, and classify objects at long range for higher safety ratings. Cameras are low cost and high resolution but are unreliable because of increased processing to detect objects at long ranges and in bad weather conditions. At night or in bad weather, their range quickly drops. Lidar is powerful but has so far failed to meet cost and low-power requirements for anything but highly specialized vehicles. Lidar technology alone is also not  able to operate at ranges required for higher speed driving. Today's radar gets high marks for low cost, reliability, acceptable range, and weather tolerance, but most self-driving car companies will tell you that camera and lidar consume the vast majority of their attention.