I-O Map Inversion, Zero Dynamics and Flight Control

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The trajectory control of aircraft in rapid, nonlinear maneuvers is discussed. Based on nonlinear invertibility theory, a control law is derived to independently control roll, pitch, and sideslip angles using rudder, elevator, and aileron. Integral feedback is introduced in order to obtain robustness in the control system to parameter uncertainty. The stability of the zero dynamics is examined. Simulation results are presented to show that in a closed-loop system, precise simultaneous lateral and longitudinal maneuvers can be performed despite the presence of uncertainty in the stability derivatives.


Aerospace control; Aircraft; Airplanes – Control systems; Elevators; Feedback control systems; Flight control; Nonlinear dynamical systems; Nonlinear systems; Robust control; Stability; Stability of airplanes; Uncertain systems; Uncertainty


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