Multivariable stability-margin optimisation with decoupling and output regulation

摘要: A procedure is developed for maximising frequency-weighted stability-margin singular values a multivariable linear time-invariant feedback control system subject to design constraints requiring decoupling and asymptotic tracking in the presence of unstable command disturbance signals closed-loop stability. The results are derived using Sarason's H ∞ optimal interpolation results, together with new realisability lemma.