Abstract
The present paper deals with the investigation of the linear quadratic optimal control problem for the discrete-time descriptor systemsEx k+1=Ax k +Bu k , whereE is in general a singular matrix and the system structure is in general noncausal. The problem is considered in its general form, having singular cost matrices and cross-weighting term in the cost functional. The key idea for the solution approach is the use of the Weierstrass theorem for regular pencils, combined with a suitable permutation transformation, to form a base for the image ofE. The optimization problem is solved by forcing causality to the Hamiltonian equations, which are produced by considering the entireN-stage process as a large system of linear equations. The feedback gain matrix is obtained as a manifold which is generated by the intersection of two other manifolds.
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Communicated by C. T. Leondes
This work was supported in part by a Research Fund from the National Technical University of Athens, Athens, Greece.
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Mantas, G.P., Krikelis, N.J. Linear quadratic optimal control for discrete descriptor systems. J Optim Theory Appl 61, 221–245 (1989). https://doi.org/10.1007/BF00962798
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DOI: https://doi.org/10.1007/BF00962798