The Barycentric Bernstein Form for Control Design

In this paper, an algorithm for computing a polynomial control and a polynomial Lyapunov function in the simplicial Bernstein form is developed. This ensures asymptotic stability of the designed feedback system. To this end, we provide certificates of positivity for polynomials in the simplicial Bernstein form. Subsequently, the state space is partitioned into simplices. On each simplex, we simultaneously compute Lyapunov and control functions. With this control, the equilibrium is asymptotically stable.

[1]  Jörg Peters,et al.  Evaluation and approximate evaluation of the multivariate Bernstein-Bézier form on a regularly partitioned simplex , 1994, TOMS.

[2]  Richard Leroy Certificates of positivity in the simplicial Bernstein basis. , 2009 .

[3]  A. Neumaier Interval methods for systems of equations , 1990 .

[4]  Rafael Wisniewski,et al.  Control to facet for polynomial systems , 2014, HSCC.

[5]  Rafael Wisniewski,et al.  Robust stability of switched systems , 2014, 53rd IEEE Conference on Decision and Control.

[6]  Jürgen Garloff,et al.  Matrix methods for the simplicial Bernstein representation and for the evaluation of multivariate polynomials , 2017, Appl. Math. Comput..

[7]  Jürgen Garloff Convergent Bounds for the Range of Multivariate Polynomials , 1985, Interval Mathematics.

[8]  Rida T. Farouki,et al.  Algorithms for polynomials in Bernstein form , 1988, Comput. Aided Geom. Des..

[9]  Jürgen Garloff,et al.  Convergence and Inclusion Isotonicity of the Tensorial Rational Bernstein Form , 2014, SCAN.

[10]  Jürgen Garloff,et al.  Inclusion Isotonicity of Convex–Concave Extensions for Polynomials Based on Bernstein Expansion , 2003, Computing.

[11]  Richard F. Riesenfeld,et al.  A Theoretical Development for the Computer Generation and Display of Piecewise Polynomial Surfaces , 1980, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[12]  Ling Hou,et al.  Unifying theory for stability of continuous, discontinuous, and discrete-time dynamical systems , 2006, 2006 IEEE Conference on Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control.

[13]  Wassim M. Haddad,et al.  On the stability and control of nonlinear dynamical systems via vector Lyapunov functions , 2006, IEEE Transactions on Automatic Control.

[14]  Hoon Hong,et al.  Bernstein form is inclusion monotone , 2005, Computing.

[15]  Nicholas M. Patrikalakis,et al.  Solving nonlinear polynomial systems in the barycentric Bernstein basis , 2008, The Visual Computer.

[16]  Tareq Hamadneh Bounding Polynomials and Rational Functions in the Tensorial and Simplicial Bernstein Forms , 2018 .

[17]  Nicholas M. Patrikalakis,et al.  Computation of the solutions of nonlinear polynomial systems , 1993, Comput. Aided Geom. Des..

[18]  Oved Shisha,et al.  The Bernstein form of a polynomial , 1966 .