A GPS Based Approach for Autonomous navigation of UAV

Autonomous navigation for Unmanned Air Vehicles (UAVs) is challenging because the instruments used for sensing which are carried on-board should have very less dimensions, weight and power constraints. The developed autopilot navigation system should be robust against any real-world conditions and calculate the performance in any field tests. A GPS module is used that combines a baseband signal processing engine and a CMOS RF down-conversion circuitry which gives an excellent receiving performance. UAV’s are generally used in application which requires high altitude flight over any structures, hence the chances of GPS signal degradation is minimal. Here we present an autonomous Autopilot system suitable for use in UAVs or any Aerial vehicles that contains GPS as its primary sensing unit that replaces the existing Autopilot system architecture. This paper describes the development of an Aerial robot with an autonomous navigation system. Because of the size constraints and in UAV the common attitude control module can be removed and GPS can be used alone to get the control parameters of the UAV.