Gps based navigation system for autonomous car

Navigation is an indispensable part of a mobile robot, especially the ability to self-navigate is of immense importance to an autonomous car. For this purpose, it is necessary for the car to know its current position as well as an area of a map it has to navigate. GPS provides the required position data and a compass gives the current heading. This data in conjunction with a list of way-points obtained from the map is used to calculate the required correction in heading. This is then used to obtain the steering angle to navigate the vehicle.