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Approximate Parameterisations for Adaptive Feedback Linearisation

French, M. and Rogers, E. (1997) Approximate Parameterisations for Adaptive Feedback Linearisation At 1997 IEEE Conference on Decision and Control. , pp. 4665-4670.

Record type: Conference or Workshop Item (Other)


A generalisation of a result in Sastry & Isidori (1989) for the adaptive stabilisation/tracking of affine systems with a well defined global relative degree and linear parametric uncertainty is developed to include bounded output disturbances. From this, we develop neuro-control results, for linearly weights approximants with compactly supported basis functions, where the disturbance term is used to handle the approximation error. In contrast to many results in the neuro-control literature the control is state feedback law, taking measurements from the original coordinates not from the normal form. A local in the weights result is given, and under some nonlinearity constraints inherited from Sastry & Isidori (1989) a global result is proved, where the dimension of the controller varies according to the size of the initial conditions and tracking signal. A final global result is obtained where an 'external' controller is used to return the state vector to within a region over which the neuro controller can operate. Sastry, S. & Isidori, A. (1989), 'Adaptive control of linearizable systems', IEEE Trans. on Automatic Control 34 (11) p1123-1131.

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Published date: 1997
Additional Information: Organisation: IEEE Address: San Diego, CA
Venue - Dates: 1997 IEEE Conference on Decision and Control, 1997-01-01
Organisations: Southampton Wireless Group


Local EPrints ID: 250054
PURE UUID: 81c4d46c-c780-4b3a-9e1c-8cc15fbda36c

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Date deposited: 30 Jan 2000
Last modified: 18 Jul 2017 10:44

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Author: M. French
Author: E. Rogers

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