Abstract
A general mixed H2/μ optimal control problem is considered. The system consists of a linear-time-invariant plant with stable weights on the H2 and μ transfer functions. The controller order can be reduced to as low as that of the plant augmented with the H2 weights. A solution is developed for the optimal fixed order controller which has minimum two-norm for a given value of μ. A numerical approach using sequential quadratic programming is developed to find suboptimal controllers which are as close as desired to optimal. An F-16 longitudinal controller is designed using the mixed technique.
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More From: Automatic Control in Aerospace 1994 (Aerospace Control '94)
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