QUANTITATIVE MEASURES OF MODAL CONTROLLABILITY AND OBSERVABILITY IN VIBRATION CONTROL OF DEFECTIVE AND NEAR-DEFECTIVE SYSTEMS

Measures of modal controllability and observability for first- and second-order linear systems

Ahmed M. Hamdan, Ali H. Nayfeh · Journal of Guidance Control and Dynamics · 1989 · 243 citations

Engineering, Mathematics, Systems Engineering +14

Modal Control Theory and Applications

B. Porter, R. Crossley, Spyros G. Tzafestaş et al. · IEEE Transactions on Systems Man and Cybernetics · 1973 · 173 citations · Full text

Engineering, Systems Engineering, Dynamical Systems +10

Controllability and Observability of Linear Matrix-Second-Order Systems

P. C. Hughes, Robert E. Skelton · Journal of Applied Mechanics · 1980 · 161 citations

Engineering, Mathematics, Systems Engineering +16

Modal Control: Theory and Applications

B. Porter, Roger Crossley, P. A. Witting · IEEE Transactions on Systems Man and Cybernetics · 1974 · 153 citations

Natural Sciences, Electrical Engineering, Dynamical Systems +9

Controllability and observability criteria for multivariable linear second-order models

Alan J. Laub, W.F. Arnold · IEEE Transactions on Automatic Control · 1984 · 148 citations

Engineering, Mathematics, Systems Engineering +15