et@eng.cam.ac.uk (Eli Tzirkel-Hancock) (05/03/91)
The following report has been placed in the neuroprose archives at Ohio State University: A Direct Control Method For a Class of Nonlinear Systems Using Neural Networks Eli Tzirkel-Hancock & Frank Fallside Technical Report CUED/F-INFENG/TR.65 Cambridge University Engineering Department Trumpington Street Cambridge CB2 1PZ England Abstract A direct control scheme for a class of continuous time nonlinear systems using neural networks is presented. The objective of the control is to track a desired reference signal. This objective is achieved through input/output linearization of the system with neural networks. Learning, based on a stability type algorithm, takes place simultaneously with control. As such, the method is closely related to adaptive control methods. Indeed, the algorithm's properties are analysed with the aid of adaptive control tools. This analysis provides an interesting bridge between well studied, adaptive control methods and the field of neural network training. In particular, the importance of the property of persistent excitation and its implications to learning with networks of localized receptive fields is discussed. ************************ How to obtain a copy ************************ a) via FTP: % ftp cheops.cis.ohio-state.edu ... Name (cheops.cis.ohio-state.edu:your-id): anonymous ... Password: neuron ... ftp> cd pub/neuroprose ... ftp> binary ... ftp> get tzirkel.control.ps.Z ... ftp> quit % uncompress tzirkel.control.ps.Z % lp tzirkel.control.ps b) via postal mail (only if the above is impossible, please) Request a hardcopy from Eli Tzirkel-Hancock, et@uk.ac.cam.eng Speech Laboratory Cambridge University Engineering Department Trumpington Street, Cambridge CB2 1PZ England