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Mostrando ítems 1-10 de 10
Artículo
Simultaneous navigation and mascon gravity estimation around small bodies
(Elsevier, 2023-12)
This manuscript develops a simultaneous navigation and gravity estimation strategy around a small body. The scheme combines dynamical model compensation with a mascon gravity fit. Dynamical compensation adds the unmodeled ...
Ponencia
Model Predictive Control for Spacecraft Rendezvous in Elliptical Orbits with On/Off Thrusters
(Elsevier, 2015)
In previous works, the authors have developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated (PWM) control signals, for circular and eccentric Keplerian orbits. The ...
Ponencia
Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters
(Elsevier, 2014)
In a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated (PWM) control signals, assuming that the target was moving in a circular ...
Ponencia
Robust Model Predictive Control for Spacecraft Rendezvous with Online Prediction of Disturbance Bounds
(Elsevier, 2009)
A Model Predictive Controller is introduced to solve the problem of rendezvous of spacecraft, using the HCW model and including additive disturbances and line-of-sight constraints. It is shown that a standard MPC is not ...
Ponencia
Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters
(Elsevier, 2014)
In a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated (PWM) control signals, assuming that the target was moving in a circular ...
Ponencia
A Flatness-Based Trajectory Planning Algorithm for Rendezvous of Single-Thruster Spacecraft
(Elsevier, 2018)
This work presents a trajectory planning algorithm for spacecraft rendezvous with a passive target. The main assumption is that the chaser vehicle has a single thruster and an attitude control system (e.g. reaction wheels) ...
Artículo
Pulse-width predictive control for LTV systems with application to spacecraft rendezvous
(Elsevier, 2017)
This work presents a Model Predictive Controller (MPC) that is able to handle Linear Time-Varying (LTV) plants with Pulse-Width Modulated (PWM) control. The MPC is based on a planner that employs a Pulse-Amplitude Modulated ...
Ponencia
A Predictive Guidance Algorithm for Autonomous Asteroid Soft Landing
(Elsevier, 2018)
The objective of this work is to present a closed-loop guidance algorithm for landing a probe on an irregular shaped rotating asteroid. The main assumption is that the spacecraft is orbiting close to the asteroid and has ...
Ponencia
Trajectory Planning for Spacecraft Rendezvous with On / Off Thrusters
(Elsevier, 2011)
The objective of this work is to present a trajectory planning algorithm for spacecraft rendezvous that is able to incorporate Pulse-Width Modulated (PWM) control signals. The algorithm is based on linearization around a ...
Ponencia
Trajectory Planning for Spacecraft Rendezvous with On / Off Thrusters
(Elsevier, 2011)
The objective of this work is to present a trajectory planning algorithm for spacecraft rendezvous that is able to incorporate Pulse-Width Modulated (PWM) control signals. The algorithm is based on linearization around a ...