Fractional-order Bessel wavelet functions for solving variable order fractional optimal control problems with estimation error

Haniye Dehestani, Yadollah Ordokhani and Mohsen Razzaghi

International Journal of Systems Science, 2020, vol. 51, issue 6, 1032-1052

Abstract: In the present paper, we apply the fractional-order Bessel wavelets (FBWs) for solving optimal control problems with variable-order (VO) fractional dynamical system. The VO fractional derivative operator is proposed in the sense of Caputo type. To solve the considered problem, the collocation method based on FBWFs, pseudo-operational matrix of VO fractional derivative and the dual operational matrix is proposed. In fact, we convert the problem with unknown coefficients in the constraint equations, performance index and conditions to an optimisation problem, by utilising the proposed method. Also, the convergence of the method with details is discussed. At last, to demonstrate the high precision of the numerical approach, we examine several examples.

Date: 2020
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DOI: 10.1080/00207721.2020.1746980

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