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This paper tackles the gain-scheduling control design issue in the presence of hidden coupling terms. Hidden coupling terms naturally arise when endogenous signals, such as system outputs or state variables, are used as scheduling parameters. In this case, additional terms appear in the linearized gain-scheduled controller dynamics, which are generally omitted in the linear controller dynamics used...
The present work aims at improving the performance of robust and smooth self-scheduled controllers in the framework of structured H∞ design. The developed procedure exploits multi-model and multi-channel capabilities of a MATLAB-based tool hinfstruct in the design of robust and self-scheduled flight control systems. In this approach, both controller and gain-scheduling architectures are defined a...
A robust control design for a space launcher during its atmospheric ascent is presented. Considering a typical wind profile during flight, the launcher controller has to first stabilize the open-loop unstable system, and then maintain verticality. The model available takes into account flexible modes and nozzle actuator dynamics, and is time-variant. Aside from launcher stability, additional requirements...
This work presents an application of structured H∞ synthesis, a novel robust controller synthesis technique that takes the benefits of the classic H∞ synthesis imposing additional restrictions to the controller structure. These restrictions allows the designer to synthesize controllers with a more understandable structure and help in the optimization process. This technique is applied to the atmospheric...
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