Dual Navigation (GPS) Sensors on Drones Explained Drone or UAV waypoint navigation systems are more advanced than the navigation systems used in the handheld devices. The navigation sensors (IRNSS/GPS/GLONAS etc.) with the help of satellites tells a device its location in a two or three dimensional space. Incase of drones, the navigation system plays a crucial role in maintaining stability, heading, altitude and speed. With the help of the sensors, an RPAS can be programmed to follow certain routes, generally referred to