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The continue-time unscented Kalman filter (UKF) is developed to estimate the state of a jet transport aircraft. The UKF is based on the nonlinear longitudinal aircraft equations of motion, and it is designed to provide estimates of horizontal and vertical atmospheric wind inputs. The optimal state and disturbance estimates are incorporated in feedback control laws based on the slow- and fast-time-scale...
A multi-objective flight controller design method for an airplane with multiple operating points (MOP) is proposed via Lyapunov theory, which takes account of handling quality requirement and robust stability simultaneously. A handling quality criterion for all flights that correspond to multiple operating points is derived by linear matrix inequality (LMI) approach. Based on parameter-dependent Lyapunov...
This paper investigates the problems of robust Hinfin performance analysis and control synthesis for linear systems, having polytopic type of uncertainties, via the parameter-dependent Lyapunov functions. First, via employing a descriptor model transformation of the system, a Hinfin performance criterion in terms of linear matrix inequalities is derived. This Hinfin performance criterion can be adopted...
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