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math.OC2026
Confidentiality of Linear Control Systems with Quadratic Output Under Sensor Attacks [Extended Version]
Zeyad M. Manaa, Nathan van de Wouw, Michelle S. Chong
We study the state estimation problem for linear control systems with quadratic outputs which are locally unobservable at the equilibrium. We show that, despite this inherent lack…
math.OC2026
Unimodal self-oscillations and their sign-symmetry for discrete-time relay feedback systems with dead zone
Kang Tong, Christian Grussler, Michelle S. Chong
This paper characterizes self-oscillations in discrete-time linear time-invariant (LTI) relay feedback systems with nonnegative dead zone. Specifically, we aim to establish existen…
math.OC2025
Modified Control Barrier Function for Quadratic Program Based Control Design via Sum-of-Squares Programming
Yankai Lin, Michelle S. Chong, Carlos Murguia
We consider a nonlinear control affine system controlled by inputs generated by a quadratic program (QP) induced by a control barrier functions (CBF). Specifically, we slightly mod…