Increasing Local GPS Accuracy for a Small Robot

Even though GPS makes it possible for us to easily navigate around the planet in almost any vehicle we’d like, whether that’s a passenger vehicle, airplane, or cargo ship, it’s not really suitable for applications that require sub-meter accuracy. For that, some specialized hardware is needed, and [GreatScott!] shows us how to do it using a small robot as a platform . The key to extremely accurate GPS signals in this case is using a receiver that supports real-time kinematic positioning (RTK).