Browsing by Author "Packard, Andy"
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Item Nonlinear Receding Horizon Control of an F-16 Aircraft(American Institute of Aeronautics and Astronautics, 2002) Bhattacharya, Raktim; Balas, Gary J.; Kaya, M. Alpay; Packard, AndyThe application of receding horizon control (RHC) with the linear, parameter varying (LPV) design methodology to a high-fidelity, nonlinear F-16 aircraft model is demonstrated. The highlights are 1) use of RHC to improve upon the performance of a LPV regulator; 2) discussion on details of implementation such as control space formulation, tuning of RHC parameters, computation time and numerical properties of the algorithms; and 3) simulated response of nonlinear RHC and LPV regulator.Item Optimally Scaled H Infinity Full Information Control Synthesis with Real Uncertainty(American Institute of Aeronautics and Astronautics, 1996) Balas, Gary J.; Lind, Rick; Packard, AndyAn algorithm to synthesize optimal controllers for the scaled H Infinity full information problem with real and complex uncertainty is presented. The control problem is reduced to a linear matrix inequality, which can be solved via a finite dimensional convex optimization. This technique is compared with the optimal scaled H Infinity full information with only complex uncertainty and D-K iteration control design to synthesize controllers for a missile autopilot. Directly including real parametric uncertainty into the control design results in improved robust performance of the missile autopilot. The controller synthesized via D-K iteration achieves results similar to the optimal designs.