4 papers
On the Gap Between H2 Optimal Control and Disturbance Decoupling
Ruirui Ma, Sarah H. Q. Li
We study the relationship between disturbance decoupling (DD) and H2 optimal control for linear time-invariant (LTI) systems, revealing a fundamental gap between DD subspace constr…
MPC for momentum counter-balanced and zero-impulse contact with a free-spinning satellite
Theofania Karampela, Rishie Seshadri, Florian Dörfler +1
In on-orbit robotics, a servicer satellite's ability to make contact with a free-spinning target satellite is essential to completing most on-orbit servicing (OOS) tasks. This manu…
A Markov Decision Process Framework for Early Maneuver Decisions in Satellite Collision Avoidance
Francesca Ferrara, Lander W. Schillinger Arana, Florian Dörfler +1
We develop a Markov decision process (MDP) framework to autonomously make guidance decisions for satellite collision avoidance maneuver (CAM) and a reinforcement learning policy gr…
Mitigating Transient Bullwhip Effects Under Imperfect Demand Forecasts
Sarah H. Q. Li, Florian Dörfler
Motivated by how forecast errors exacerbate order fluctuations in supply chains, we leverage robust feedback controller synthesis to characterize, compute, and minimize the worst-c…