Identification of physical parameters in structured systems

~bshmct-~ine&, time-invatiant systems with a limited algorithms thus estimate the numerator and. : number of unknowns corresponding to physical component. : often exhititcertain sm-l mnditiollS on the way . . denominator coefficients of the transfer function, .' in which these values appear in the transfer functions. In this having first assumed all of them to be unknown. paper, the problem, of identifying 'these unknowns is In practice, however, a great deal. of partial considered. Tbe s t w t n n translates to an d a t e d iden*tion problem whi& is in the uhknowns, : knowledge is often available, which if exploited -,is exploited in the design of two algorittms, which use . should give rise to parameterizations involving measurements of input and,output and knowledge of the fewer rnknowns and befler identifieation :. polynomial axffidents of the multilinear fombimtiom of the . . . . system parameters. Conditions ace established, for the uniform asymptotic stability of these algorithms. Usually, the lack of knowledge in a svstem .