2018
DOI: 10.1016/j.isatra.2018.07.019
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A novel approach of fractional-order time delay system modeling based on Haar wavelet

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Cited by 45 publications
(27 citation statements)
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“…Haar wavelet has several applications in diverse areas of research. A portion of the current work utilizing wavelets can be found in the references [2][3][4][5][6][7]. Different researchers utilized wavelets for approximate solutions of IEs [8], boundary value problems [9], PDEs [10], fractional PDEs [11] and delay PDEs [12].…”
Section: To Develop Efficient Technique For the Approximate Solution mentioning
confidence: 99%
“…Haar wavelet has several applications in diverse areas of research. A portion of the current work utilizing wavelets can be found in the references [2][3][4][5][6][7]. Different researchers utilized wavelets for approximate solutions of IEs [8], boundary value problems [9], PDEs [10], fractional PDEs [11] and delay PDEs [12].…”
Section: To Develop Efficient Technique For the Approximate Solution mentioning
confidence: 99%
“…Basically, the operational matrix of fractional order integration transforms integral/derivative terms into algebraic matrix multiplications. The operational matrix can be generated using different orthogonal series, for example, block pulse functions [3,4], Legendre wavelet [5], Haar wavelets [6,7], Chebyshev polynomials [8], Taylor series, etc. This method reduces the complexity of identification with higher efficiency.…”
Section: Fractional-order Modelingmentioning
confidence: 99%
“…The system with time delay was approximated using the Haar wavelet technique, presented recently in [7] and other using block pulse functions presented in [3]. The approximated fractional-order models and integer-order models for both and are as shown in Table 3 where depicts time-domain error and represents frequencydomain error.…”
Section: (4) (5)mentioning
confidence: 99%
“…where ( a 1 , a 0 , α ∈ R + ) are estimations of the linear subsystem parameters. Through minimization of an objective function, the linear subsystem parameters can be estimated , and a time-moment weighted integral performance criterion, such as the integral of squared-time-weighted error (ISTE), is suitable for such problems [20]. It is defined as…”
Section: Parameter Identification Of the Fractional Hammerstein Systementioning
confidence: 99%
“…To reduce computational complexity when identifying non-integer orders, the representation of the fractional operator with a generalized operational matrix through orthogonal basis functions, such as a block pulse [17] and the Haar wavelet [18], are more suitable solutions. Although this technique was extended to linear systems with time delay [19,20], its utilization in the nonlinear case has been relatively scarce.…”
Section: Introductionmentioning
confidence: 99%