Browsing by Author "Muhammad Osama Khalil"

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Simulation of Autopilot using Control System in Matlab
    (UMT Lahore, 2012) Usman Inayat; Muhammad Osama Khalil; Muhammad Usman Baig
    Autopilot is an automatic flight control system that keeps an aircraft in level flight or on a set course. It can be directed by the pilot, or it may be coupled to a radio navigation signal. Autopilot reduces the physical and mental demands on a pilot and increases safety. The common features available on an autopilot are altitude and heading hold. The simplest systems use gyroscopic attitude indicators and magnetic compasses to control servos connected to the flight control system. The number and location of these servos depends on the complexity of the system. For example, a single-axis autopilot controls the aircraft about the longitudinal axis and a servo actuates the ailerons. A three-axis autopilot controls the aircraft about the longitudinal, lateral, and vertical axes. Three different servos actuate ailerons, elevator, and rudder. More advanced systems often include a vertical speed and/or indicated airspeed hold mode. Advanced autopilot systems are coupled to navigational aids through a flight director. Here we have designed some important autopilots by using some assumptions and simply following some design rules and procedures of international standards. Resultantly obtaining stability derivatives and then autopilots with some inputs and output responses in MATLAB by the help of block diagrams.