Idea- Robot movement

Create a Robotics platform that moves in a particular direction when using a circular joystick. This would result in more intuitive controls, and much steeper learning curve. The Robot will travel in the direction that you point the joystick relative to the users position. With this type of system, directing the robot to go to the left would actually be telling it to travel counterclockwise around you. This type of control can be achieved using 3 antennas, Triangulation, and Phase detection. The direction from which the signal is received can be determined by analyzing the phase shifts between signals allowing the robot to determine what it's correct path of travel should be.