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A performance comparison of robust adaptive controllers: linear systems

Sanei, Ahmad and French, Mark (2006) A performance comparison of robust adaptive controllers: linear systems Mathematics of Control, Signals, and Systems (MCSS), 18, (4), pp. 369-394. (doi:10.1007/s00498-006-0005-1).

Record type: Article


We consider robust adaptive control designs for relative degree one, minimum phase linear systems of known high frequency gain. The designs are based on the dead-zone and projection modifications, and we compare their performance w.r.t. a worst case transient cost functional with a penalty on the L? norm of the output, control and control derivative.We establish two qualitative results. If a bound on the L? norm of the disturbance is known and the known a priori bound on the uncertainty level is sufficiently conservative, then it is shown that a dead-zone controller outperforms a projection controller. The complementary result shows that the projection controller is superior to the dead-zone controller when the a priori information on the disturbance level is sufficiently conservative.

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Published date: October 2006
Keywords: robust adaptive control, non-singular performance
Organisations: Electronics & Computer Science, ISIS


Local EPrints ID: 259305
PURE UUID: 0c1d7652-a1a3-47e4-a94d-ddd14f162d53

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Date deposited: 30 Apr 2004
Last modified: 18 Jul 2017 09:23

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