Description:-

             A quadrotor, also called a quadrotor helicopter or quadrocopter, is an aircraft that is lifted and propelled by four rotors. Quadrotors are classified as rotorcraft, as opposed to fixed-wing aircraft, because their lift is derived from four rotors. They can also be classified as helicopters, though unlike standard helicopters, quadrotors use fixed-pitch blades, whose rotor pitch does not vary as the blades rotate. Control of vehicle motion can be achieved by varying the relative speed of each rotor to change the thrust and torque produced by each. The more recent generation of quadrotors are commonly designed to be unmanned aerial vehicles (UAVs). These vehicles use an electronic control systemsand electronic sensors, to stabilize the aircraft. With their small size and agile maneuverability, these quadrotors can be flown indoors as well as outdoors.

 ELECTRONICS: electronics on quadrotor include IMU’s (inertial measurement unit),Xbee(transceiver),Li-polybatteries ,and 4 Outrunner motors.

CODING: coding aspects include filtering the data received from IMU’s and using PID(proportional integral derivative) to control motors. The IMU filtering is done using KALMAN FILTER .All coding is done on MATLABplatform.