Improvements in stable inversion of NARX models by using Mann iteration

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Authors

Eksteen, J.J.A.
Heyns, P.S. (Philippus Stephanus)

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Taylor and Francis

Abstract

The use of Mann iteration in the stable inversion of NARX models that have been converted to state space form is investigated to either recover the convergence or improve the accuracy of the best approximate solution under conditions when Picard iteration fails to converge. Attention is given to the use of filtering and time-varying iteration gains. The results are potentially of use in response reconstruction for fatigue testing purposes where the inverse of a NARX model, obtained by system identification, may be used to achieve the reconstruction.

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Keywords

Stable inversion, Picard iteration, Mann iteration, Ishikawa iteration, Iterative learning control, NARX models, Discrete time, Nonlinear, Response reconstruction, Fatigue testing

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Citation

J.J.A. Eksteen & P.S. Heyns (2016) Improvements in stable inversion of NARX models by using Mann iteration, Inverse Problems in Science and Engineering, 24:4, 667-691, DOI: 10.1080/17415977.2015.1055262.