Coordinated stability based trajectory tracking control law design of reconnaissance and attack UAV

Trajectory tracking problem of reconnaissance and attack UAV is considered in this paper. Arch circle is introduced before the turning point of the flight route to keep good reconnaissance and attack purpose. Trim, small disturbance and linearization techniques are applied to the ontology mode of the UAV. By analyzing the dynamical character of pitching mode, rolling mode and Dutch Roll mode, the integrated guidance and control (IGC) system design method is used for UAV to accomplish reconnaissance and attack task. For longitudinal control law design, height feedback is used as guidance loop and pitching angle and pitching angular velocity replace control loop, while for lateral-directional control law design, coordinated stability based method is used, where interface signal is introduced to aileron and rudder channel. The six freedom simulations are given to demonstrate the efficiency of the proposed method.