3 papers
eess.SY2026
A Floquet Mode LQR for Orbital Station-Keeping in Cislunar Space
António Nunes, Sérgio Brás, Pedro Batista
A linear optimal control law for orbital station-keeping in the Earth-Moon Restricted Three Body Problem (R3BP) is developed via Linear Quadratic Regulator (LQR) theory. First, the…
eess.SY2026
Nonlinear backstepping with saturation for low-thrust station-keeping of libration point orbits
António Nunes, Sérgio Brás, Pedro Batista
This paper presents a novel nonlinear backstepping control law for continuous, low-thrust station-keeping in the Earth-Moon system. Quasi-periodic libration point orbits are target…
math.OC2026
Designing trajectories in the Earth--Moon system: a Levenberg--Marquardt approach
António Nunes, Sérgio Brás, Pedro Batista +1
Trajectory design in cislunar space under a high-fidelity ephemeris model (HFEM) is pursued through a nonlinear optimization perspective anchored on the transition of solutions fro…