Accuracy down to a centimeter or two for satellite tracking opens the door to new applications including autonomous driving, professional drone navigation and wireless industrial robotics control. The current level of accuracy for GNSS (Global Navigation Satellite Systems), of between one and five meters, is fair enough for satellite navigation systems in vehicles, Google maps and recreational tracking as in sports watches, although even some of these would benefit from an improvement. But for collision avoidance for drones and vehicles, and even more so for high precision process control, much greater improvement down to at least one or two centimeters accuracy is required. It is true that the latest generation GNSS systems, such as the European Union’s Galileo, boast improved…