Abstract
A robust algorithm is proposed for numerically computing an interval matrix containing the stabilizing solution of a discrete-time algebraic Riccati equation. This algorithm is based on estimating an upper bound for the spectral radius of a matrix power utilizing the Perron–Frobenius theory. The algorithm moreover verifies the uniqueness of the contained solution. Numerical results show that the algorithm is more successful than the previous algorithms.
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Notes
Although the accuracy of \(\tilde{X}\) is unknown at this stage, it is enough to show \(\rho (A_{\tilde{X}}) < 1\).
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This work was partially supported by JSPS KAKENHI Grant Number JP16K05270.
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Miyajima, S. Robust verification algorithm for stabilizing solutions of discrete-time algebraic Riccati equations. Japan J. Indust. Appl. Math. 36, 763–776 (2019). https://doi.org/10.1007/s13160-019-00353-7
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DOI: https://doi.org/10.1007/s13160-019-00353-7
Keywords
- Discrete-time algebraic Riccati equation
- Stabilizing solution
- Verified numerical computation
- Perron–Frobenius theory