147 citations · 270 across the 16 of their papers we have counts for
17 papers
Discrete Adjoint Method for Variational Integration of Constrained ODEs and its application to Optimal Control of Geometrically Exact Beam Dynamics
Matthias Schubert, Rodrigo T. Sato Martín de Almagro, Karin Nachbagauer +2
Direct methods for the simulation of optimal control problems apply a specific discretization to the dynamics of the problem, and the discrete adjoint method is suitable to calcula…
A new Lagrangian approach to control affine systems with a quadratic Lagrange term
Sigrid Leyendecker, Sofya Maslovskaya, Sina Ober-Blobaum +2
In this work, we consider optimal control problems for mechanical systems on vector spaces with fixed initial and free final state and a quadratic Lagrange term. Specifically, the…
Multi-objective low-thrust spacecraft trajectory design using reachability analysis
Nikolaus Vertovec, Sina Ober-Blöbaum, Kostas Margellos
One of the fundamental problems in spacecraft trajectory design is finding the optimal transfer trajectory that minimizes the propellant consumption and transfer time simultaneousl…
Safety-Aware Hybrid Control of Airborne Wind Energy Systems
Nikolaus Vertovec, Sina Ober-Blöbaum, Kostas Margellos
A fundamental concern in progressing Airborne Wind Energy (AWE) operations towards commercial success, is guaranteeing that safety requirements placed on the systems are met. Due t…
The Past Does Matter: Correlation of Subsequent States in Trajectory Predictions of Gaussian Process Models
Steffen Ridderbusch, Sina Ober-Blöbaum, Paul Goulart
Computing the distribution of trajectories from a Gaussian Process model of a dynamical system is an important challenge in utilizing such models. Motivated by the computational co…
Verification of safety critical control policies using kernel methods
Nikolaus Vertovec, Sina Ober-Blöbaum, Kostas Margellos
Hamilton-Jacobi reachability methods for safety-critical control have been well studied, but the safety guarantees derived rely on the accuracy of the numerical computation. Thus,…