2011
DOI: 10.1590/s1807-03022011000200007
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Solving of time varying quadratic optimal control problems by using Bézier control points

Abstract: Abstract. In this paper, linear quadratic optimal control problems are solved by applying least square method based on Bézier control points. We divide the interval which includes t, into k subintervals and approximate the trajectory and control functions by Bézier curves. We have chosen the Bézier curves as piacewise polynomials of degree three, and determined Bézier curves on any subinterval by four control points. By using least square method, we introduce an optimization problem and compute the control poi… Show more

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Cited by 15 publications
(11 citation statements)
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“…There is a large number of research papers that employ this method to solve optimal control problems (see for example [2,3,5,7,8,9,10,11,12,13,14,17] and the references therein). Razzaghi, et.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…There is a large number of research papers that employ this method to solve optimal control problems (see for example [2,3,5,7,8,9,10,11,12,13,14,17] and the references therein). Razzaghi, et.…”
Section: Introductionmentioning
confidence: 99%
“…The method is based on approximating the state variables and the control variables with Bezier polynomials [5,13,14]. Our method consists of reducing the optimal control problem to a NLP one by first expanding the state rateẋ(t) the control u(t) as a Bezier polynomial with unknown coefficients.…”
Section: Introductionmentioning
confidence: 99%
“…The state and/or control involved in the equation are approximated by finite terms of orthogonal series and by using the operational matrix of integration the integral operations are eliminated. The form of the operational matrix of integration depends on the particular choice of the orthogonal functions like Walsh functions [4], Block-pulse functions [8], Laguerre series [9], Jacobi series [10], Fourier series [11], Bessel series [12], Taylor series [13], Shifted Legendre [14], Chebyshev polynomials [15] and Hermite polynomials [16]. In this study, we use wavelet functions to approximate both the control and state functions.…”
Section: Introductionmentioning
confidence: 99%
“…In the current study, a review of many papers which give methods for solving LQPs is provided. For example, spectral method [10], time-domain decomposition iterative method [7], and Bézier control points [4]. On the other hand, a substantial literature has discussed the useful notion of orthonormal polynomials such as the use of Legendre polynomials which we have recently dealt with to looking for formulas of Gaussian quadrature.…”
Section: Introductionmentioning
confidence: 99%