10 citations · 27 across the 8 of their papers we have counts for
8 papers
Autonomous and Robust Orbit-keeping for Small Body Missions
Rodolfo Batista Negri, Antonio Fernando Bertachini de Almeida Prado
This article presents a path-following control law for autonomous orbital maintenance of small body missions. The control law is robust, stable, and capable of controlling only the…
A Circular Restricted n-body Problem
Rodolfo Batista Negri, Antonio Fernando Bertachini de Almeida Prado
This paper introduces the Circular Restricted n-Body Problem (CRNBP), an extension of the bicircular restricted four-body problem (BCR4BP) designed to describe the dynamics of an n…
Parametric Optimization of Low Thrust Orbital Maneuvers
Antonio Fernando Bertachini de Almeida Prado
The goal of the present paper is to make a numerical analysis of parametric optimization of low thrust orbital maneuver. An orbital maneuver occurs when it is necessary to modify t…
Study on Autonomous Gravity-assists with a Path-following Control
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado
We investigate the autonomous control of gravity-assist hyperbolic trajectories using a path following control law based on sliding mode control theory. This control strategy ensur…
Using low Lift-to-Drag spacecraft to perform upper atmospheric Aero-Gravity Assisted Maneuvers
Jhonathan O. Murcia Piñeros, Rodolpho Vilhena de Moraes, Antônio F. Bertachini de Almeida Prado
The Gravity Assisted Maneuver has been applied in lots of space missions, to change the spacecraft heliocentric velocity vector and the geometry of the orbit, after the close appro…
Applying the perturbative integral in aeromaneuvers around Mars to calculate the cost
Jhonathan O. Murcia Piñeros, Antônio F. Bertachini de Almeida Prado, Walter Abrahão dos Santos +1
The perturbative integral method was applied to quantify the contribution of external forces during a specific interval of time in trajectories of spacecraft around asteroids and u…
Autonomous Rapid Exploration in Close-Proximity of an Asteroid
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado, Ronan Arraes Jardim Chagas +1
The increasing number of space missions may overwhelm ground support infrastructure, prompting the need for autonomous deep-space guidance, navigation, and control (GN\&C) systems.…
Robust Path-following for Keplerian Orbits
Rodolfo Batista Negri, Antônio Fernando Bertachini de Almeida Prado
This work introduces a novel path-following control strategy inspired by the famous two-body problem, aiming to stabilize any Keplerian orbit. Utilizing insights from the mathemati…