|On-line Identification Algorithm and Convergence Analysis for Sandwich Systems with Backlash
Ruili Dong and Yonghong Tan*
International Journal of Control, Automation, and Systems, vol. 9, no. 3, pp.588-594, 2011
Abstract : In this paper, an on-line algorithm for identification of sandwich systems with backlash is proposed. In this method, the sandwich systems with backlash can be transformed into a special model where all the model parameters are separated based on the so-called key term separation principle. In this case, a piecewise model with linear coefficients combining with nonlinear variables is obtained. Thus, an ex-tended recursive identification algorithm is used to estimate the parameters of the proposed model. Fi-nally, the modeling results on an X-Y positioning stage are presented.
Backlash, identification, nonlinear systems, recursive estimation, sandwich system.
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