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Author

Rachel Newton

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Preprint Sep 2026

A Frequency Domain Approach to Bounding Riccati Equation Perturbations

The discrete algebraic Riccati equation (DARE) is used to solve for the optimal feedback gain in linear-quadratic regulator (LQR) control of discrete-time systems. In this letter, we consider the effect of perturbations to the LQR data on the DARE solutions. We present a new frequency domain approach to derive an expli...

Rachel Newton, Laura Balzano, Peter J. Seiler · 0 citations

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