Stabilization of a Pitch Axis Flight Control Experiment with Input Rate Saturation

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Trygve Lauvdal and Richard M. Murray
Modeling, Identification and Control, 20(4):225-240

Motivated by problems in flight control, we present a technique for stabilizing a chain of integrators in the presence of rate limitations on the input. Our technique improves on several existing techniques in the literature and has a number of interesting features. The controller is evaluated experimentally on a pitch axis flight control experiment at Caltech. The experimental results show that even in the presence of rate limits that cause a linear controller to go unstable, the time-varying controller stabilizes the system with minimal loss in performance.