H∞ -optimization without assumptions on finite or infinite zeros
SIAM Journal on Control and Optimization
Nonlinear H∞ almost disturbance decoupling
Systems & Control Letters
Nonlinear Control Systems
A Nonlinear Hierarchical Multiple Models Neural Network Decoupling Controller
ISNN '08 Proceedings of the 5th international symposium on Neural Networks: Advances in Neural Networks, Part II
Low gain and low-and-high gain feedback: a review and some recent results
CCDC'09 Proceedings of the 21st annual international conference on Chinese Control and Decision Conference
Hierarchical multiple models neural network decoupling controller for a nonlinear system
ICONIP'06 Proceedings of the 13th international conference on Neural information processing - Volume Part III
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As a complement to some new breakthroughs on global almost disturbance decoupling problem with stability for nonlinear systems, in a recent note, we identified a class of unstable zero dynamics that are allowed to be affected by disturbances. The class of the unstable zero dynamics identified in that note is linear and have all the poles at the origin. In this paper, we enlarge such a class of zero dynamics to include any linear system with all its poles in the closed left-half plane. The condition on the way the disturbance affects this part of zero dynamics is also identified. This enlargement is due to a new scaling technique that views each pair of jw axis zeros as a ''generalized integrator'' and transforms the zero dynamics into a number of chains of ''generalized integrators''.