Hoo Aerospace Control Design

Recent developments in H'infinity' theory have produced a promising new design approach. This text aims to fill the gap between theory and practice and to address implementation issues associated with multivariable H'infinity' controllers.

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Recent developments in H'infinity' theory have produced a promising new design approach. This text aims to fill the gap between theory and practice and to address implementation issues associated with multivariable H'infinity' controllers. An H'infinity' control law has been developed and tested for the DRA (Defence Research Agency) Bedford research Harrier. The first part of the text introduces the basic components of the flight control and engine systems and describes the models for the different sub-systems. The second part deals with implementational problems, including the discretization process, handling limitations on actuators and the non-linearities in the system.