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On-line identification algorithm and convergence analysis for sandwich systems with backlash

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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 extended recursive identification algorithm is used to estimate the parameters of the proposed model. Finally, the modeling results on an X-Y positioning stage are presented.

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Correspondence to Yonghong Tan.

Additional information

Recommended by Editorial Board member Won-Jong Kim under the direction of Editor Young Il lee. This work was supported by the projects of Shanghai Normal University (DZL811, DRL904 and DYL201005); the projects of Shanghai Education Commission (09ZZ141 and 11YZ92); the project of NSFC (Grant No. 60971004), and the projects of Science and Techn. Commission of Shanghai (09220503000, 10JC1412200 and 09ZR1423400).

Ruili Dong received her Ph.D. degree in Control Engineering from Shanghai Jiaotong University in 2009. Presently, she is a lecturer at the College of Mechanical and Electronic Engineering, Shanghai Normal University, China. Her research interests include identification of nonlinear systems, and mechatronics.

Yonghong Tan obtained his Ph.D. degree in Electrical Engineering from University of Ghent, Belgium in 1996. Now, he is a full professor at College of Mechanical and Electronic Engineering, Shanghai Normal University, China. His research interests include identification and control of nonlinear systems, mechatronics, and biomedical signal processing.

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Dong, R., Tan, Y. On-line identification algorithm and convergence analysis for sandwich systems with backlash. Int. J. Control Autom. Syst. 9, 588–594 (2011). https://doi.org/10.1007/s12555-011-0320-2

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  • DOI: https://doi.org/10.1007/s12555-011-0320-2

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