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A self-adjusting control system with large initial error

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2 Author(s)
Clark, R. ; University of Washington, Seattle, WA, USA ; Wheeler, P.

A performance measuring, plant-adaptive control system is described. A linear plant having two variable parameters induces a large system error which is reduced by adjustments made in two controller parameters. An adaptive computer, the logical design of which is based on a modification of Newton's method of descent, generates the controller-parameter changes from measurements of the integral-of-error squared (ISE). This method is evaluated with regard to the time interval required to reduce ISE from a large initial value to a small prescribed limit. The average adaptation time for this system is shown to be approximately sixty times the response time of the system when the system error is zero.

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Automatic Control, IRE Transactions on  (Volume:7 ,  Issue: 1 )