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A Study of the stability of solutions to inverse problems of dynamics of control systems under perturbations of initial data

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Abstract

For systems linear in control, we consider problems of recovering the dynamics and control from a posteriori statistics of trajectory sampling and known estimates for the sampling error. An optimal control problem of minimizing an integral regularized functional of dynamics and statistics residuals is introduced. Optimal synthesis is used to construct controls and trajectories that approximate a solution of the inverse problem. A numerical approximation method based on the method of characteristics for the Hamilton–Jacobi–Bellman equation and on the notion of minimax/viscosity solution is developed. Sufficient conditions are obtained under which the proposed approximations converge to a normal solution of the inverse problem under a matched vanishing of the approximation parameters (bounds for the sampling error, the regularizing parameter, the grid step in the state variable, and the integration step). Results of the numerical solution of identification and recovery problems for controls and trajectories are presented for a mechanical model of gravitation under given statistics of phase coordinate sampling.

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Authors and Affiliations

  1. Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences, ul. S. Kovalevskoi 16, Yekaterinburg, 620990, Russia

    N. N. Subbotina & T. B. Tokmantsev

  2. Institute of Mathematics and Computer Science, Ural Federal University, pr. Lenina 51, Yekaterinburg, 620000, Russia

    N. N. Subbotina

  3. Ural Power Engineering Institute, Ural Federal University, ul. S. Kovalevskoi 5, Yekaterinburg, 620049, Russia

    T. B. Tokmantsev

Authors
  1. N. N. Subbotina
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  2. T. B. Tokmantsev
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Correspondence to N. N. Subbotina.

Additional information

Original Russian Text © N.N. Subbotina, T.B.Tokmantsev, 2014, published in Trudy Instituta Matematiki i Mekhaniki UrO RAN, 2014, Vol. 20, No. 3.

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Subbotina, N.N., Tokmantsev, T.B. A Study of the stability of solutions to inverse problems of dynamics of control systems under perturbations of initial data. Proc. Steklov Inst. Math. 291 (Suppl 1), 173–189 (2015). https://doi.org/10.1134/S0081543815090126

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  • DOI: https://doi.org/10.1134/S0081543815090126

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