### Data

 Name Vázquez Valenzuela, Rafael Department Ingeniería Aeroespacial y Mecánica de Fluidos Knowledge area Ingeniería Aeroespacial Professional category Profesor Titular de Universidad E-mail Request

• Items

• Visits

### Publications

PhD Thesis

#### Model Predictive Control Applications to Spacecraft Rendezvous and Small Bodies Exploration

(2021-12-01)
The overarching goal of this thesis is the design of model predictive control algorithms for spacecraft proximity operations. ...
Final Degree Project

#### Conjunction analysis for uncertain objects in close proximity

(2021-01-01)
In an increasingly dense space environment, collision avoidance has become an essential task in satellite operations. In ...
Final Degree Project

#### Orbit determination for uncertain objects in close proximity

(2021-01-01)
Satellite overcrowding in the low Earth’s orbit, along with the arising problem of the space debris results in an increase ...
Master's Final Project

#### Analysis of Distance Measures for Detection of Manoeuvres for Satellites in Low Orbits with Radar Data

(2021-01-01)
Uno de los principales problemas del sector espacial actualmente es la gran población de objetos y basura espacial que se ...
Article

#### Event-based impulsive control for spacecraft rendezvous hovering phases

(AIAA International, 2021-01-01)
This work presents an event-triggered controller for spacecraft rendezvous hovering phases. The goal is to maintain the ...
Master's Final Project

#### Planificación y guiado óptimos de la trayectoria de ascenso a órbita de un vehículo lanzador sometida a perturbaciones y errores de modelado

(2021-01-01)
En este proyecto se explora el proceso de planificación y guiado óptimos de la trayectoria de un vehículo lanzador multietapa. ...
Final Degree Project

#### An ant-colony based optimization algorithm for interplanetary trajectories

(2020-01-01)
Humanity’s interest in the heavens has led to space exploration, which helps to expand technology, create new industries ...
Final Degree Project

#### Development of a Python-Based Orbital Mechanics Laboratory Class on Lambert’s Problem

(2020-01-01)
En la asignatura de Mecánica Orbital y Vehículos Espaciales impartida en el cuarto curso del Grado en Ingeniería Aeroespacial ...
Final Degree Project

#### Analysis and optimization of snapshot-mode earth observation constellations

(2020-01-01)
El problema propuesto en este documento es la realización de una planificación optimizada para la toma de imágenes de una ...
Article

#### Backstepping-based estimation of thermoacoustic oscillations in a Rijke tube with experimental validation

(Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
We investigate the state observer design problem for thermoacoustic instabilities in a Rijke tube using an infinite ...
Article

#### A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous

(Elsevier, 2020-01-01)
This work presents a closed-loop guidance algorithm for six-degrees of freedom spacecraft rendezvous with a passive target ...
Master's Final Project

#### Measuring Particle Distribution Functions in Collisionless Space Plasmas: Multiple Ion Population

(2019-01-01)
En marzo de 2015 la NASA lanzó la misión MMS (Multiescala Magnetosférica) con el fin de investigar el fenómeno de reconexión ...
Final Degree Project

#### Uncertainty Propagation in Low Earth Orbits

(2019-01-01)
Debido al efecto de las perturbaciones, el cual es difícil de modelar con precisión, siempre aparece un cierto grado de ...
Final Degree Project

#### Analysis and Optimization of Earth Observation Micro-Constellations

(2019-01-01)
"Remote sensing techniques provide the capacity of collecting information of spots from afar. This tool has an important ...
Article

#### Nonlinear bilateral output-feedback control for a class of viscous Hamilton¿Jacobi PDEs

(Elsevier, 2019-01-01)
We tackle the boundary control and estimation problems for a class of viscous Hamilton–Jacobi PDEs, considering bilateral ...
Presentation

#### Folding Backstepping Approach to Parabolic PDE Bilateral Boundary Control

(Elsevier, 2019-01-01)
We consider the stabilization problem for an unstable 1-D diffusion-reaction partial differential equation using a so-called ...
Presentation

#### An Event-Triggered Predictive Controller for Spacecraft Rendezvous Hovering Phases

(Elsevier, 2019-01-01)
This work presents an event-triggered model predictive controller for spacecraft hovering phases. The target is assumed ...
Final Degree Project

#### Estudio de los puntos de cruce para órbitas de pequeña excentricidad y con traza repetida

(2018-01-01)
Uno de los mayores problemas a la hora de controlar y recuperar los datos obtenidos de un satélite se debe a que el número ...
Master's Final Project

#### AUTO-based numerical study of three body problem orbits and trajectories with applications to the Lunar Deep Space Gateway

(2018-01-01)
This work can serve the reader as an initiation in numerical continuation through the AUTO software, which is specialized ...
Master's Final Project

#### Diseño y puesta en marcha de una práctica experimental sobre apuntamiento de una cámara

(2018-01-01)
El objetivo de este proyecto es el desarrollo de una práctica experimental sobre apuntamiento de una cámara que permita ...
Presentation

#### A Flatness-Based Trajectory Planning Algorithm for Rendezvous of Single-Thruster Spacecraft

(Elsevier, 2018-01-01)
This work presents a trajectory planning algorithm for spacecraft rendezvous with a passive target. The main assumption ...
Presentation

#### A Predictive Guidance Algorithm for Autonomous Asteroid Soft Landing

(Elsevier, 2018-01-01)
The objective of this work is to present a closed-loop guidance algorithm for landing a probe on an irregular shaped ...
Article

#### Pulse-width predictive control for LTV systems with application to spacecraft rendezvous

(Elsevier, 2017-01-01)
This work presents a Model Predictive Controller (MPC) that is able to handle Linear Time-Varying (LTV) plants with ...
Presentation

#### Boundary control of a Rijke Tube using irrational transfer functions with experimental validation

(Elsevier, 2017-01-01)
This paper is concerned with boundary stabilization of thermoacoustic oscillations in the Rijke tube. This system consists ...
Presentation

#### Probabilistic Analysis of Aircraft Fuel Consumption Using Ensemble Weather Forecasts

(International Conference on Research in Air Transportation (ICRAT), 2016-06-20)
The effects of wind uncertainty on aircraft fuel consumption are analyzed using a probabilistic trajectory predictor. The ...
Article

#### Explicit output-feedback boundary control of reaction-diffusion PDEs on arbitrary-dimensional balls

(Société de Mathématiques Appliquées et Industrielles (SMAI), 2016-01-01)
This paper introduces an explicit output-feedback boundary feedback law that stabilizes an unstable linear constant-coefficient ...
Final Degree Project

#### Estudio del efecto de incertidumbres en la trayectoria de una aeronave

(2016-01-01)
Final Degree Project

#### Diseño de misiones de rendezvous con asteroides próximos a la tierra

(2016-01-01)
En este trabajo se estudian los asteroides desde el punto de vista de la Mecánica Orbital bajo la premisa de la necesidad ...
Article

#### Control of Homodirectional and General Heterodirectional Linear Coupled Hyperbolic PDEs

(Institute of Electrical and Electronics Engineers (IEEE), 2016-01-01)
Research on stabilization of coupled hyperbolic PDEs has been dominated by the focus on pairs of counter-convecting ...
Article

#### Boundary Control of Coupled Reaction-Advection-Diffusion Systems with Spatially-Varying Coefficients

(Institute of Electrical and Electronics Engineers (IEEE), 2016-01-01)
Recently, the problem of boundary stabilization for unstable linear constant-coefficient coupled reaction-diffusion systems ...
Presentation

#### Boundary control of a singular reaction-diffusion equation on a disk

(Elsevier, 2016-01-01)
Recently, the problem of boundary stabilization for unstable linear constant-coefficient reaction-diffusion equation on ...
Presentation

#### Bilateral boundary control of one-dimensional first- and second-order PDEs using infinite-dimensional backstepping

(Institute of Electrical and Electronics Engineers (IEEE), 2016-01-01)
This paper develops an extension of infinite-dimensional backstepping method for parabolic and hyperbolic systems in one ...
Presentation

#### Boundary Feedback Control of Unstable thermoacoustic Oscillations in the Rijke Tube

(Elsevier, 2016-01-01)
The problem of boundary stabilization of thermoacoustic oscillations is investigated. The Rijke tube is used as prototype ...
Presentation

#### Analysis of the Effect of Uncertain Average Winds on Cruise Fuel Load

(SESAR Joint Undertaking, 2015-12-01)
The required fuel load of an aircraft for a given cruise range with uncertain average wind (modelled by a uniform distribution) ...
Final Degree Project

#### Estudio detallado de los puntos de cruce de las trazas de satélites geocéntricos

(2015-01-01)
A la hora de diseñar la órbita de un satélite para cumplir una misión concreta es frecuente diseñar órbitas con trazas ...
Final Degree Project

#### Herramenta para el cálculo de precisión y coberturas de un sistema de navegación por satélite

(2015-01-01)
Final Degree Project

(2015-01-01)
Article

#### Applying complexity science to air traffic management

(Elsevier Ltd, 2015-01-01)
Complexity science is the multidisciplinary study of complex systems. Its marked network orientation lends itself well to ...
Presentation

#### Model Predictive Control for Spacecraft Rendezvous in Elliptical Orbits with On/Off Thrusters

(Elsevier, 2015-01-01)
In previous works, the authors have developed a trajectory planning algorithm for spacecraft rendezvous which computed ...
Presentation

#### Trajectory tracking for fixed-wing UAV using model predictive control and adaptive backstepping

(Elsevier, 2015-01-01)
This paper presents a two layer guidance and control system design for fixed-wing unmanned aerial vehicles (UAV). On the ...
Presentation

#### Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters

(Elsevier, 2014-01-01)
In a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal ...
Article

#### Marcum Q-functions and explicit kernels for stabilization of 2×2 linear hyperbolic systems with constant coefficients

(Elsevier, 2014-01-01)
We find the exact analytical solution to a Goursat PDE system governing the kernels of a backstepping-based boundary control ...
Article

#### Resolution of an Antenna-Satellite assignment problem by means of Integer Linear Programming

(Elsevier, 2014-01-01)
Every day, ground stations need to manage numerous requests for allocation of antenna time slots by customers operating ...
Presentation

#### Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters

(Elsevier, 2014-01-01)
In a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal ...
Presentation

#### Explicit boundary control of a reaction-diffusion equation on a disk

(Elsevier, 2014-01-01)
This paper introduces an explicit full-state boundary feedback law that stabilizes an unstable linear constant-coefficient ...
Article

#### Propagation of Initial Mass Uncertainty in Aircraft Cruise Flight

(American Institute of Aeronautics and Astronautics Inc., 2013-03-01)
The propagation of initial mass uncertainty in cruise flight is studied. Two cruise conditions are analyzed: one with given ...
Article

#### Local Exponential $H^2$ Stabilization of a $2\times2$ Quasilinear Hyperbolic System Using Backstepping

(Society for Industrial and Applied Mathematics, 2013-01-01)
In this work, we consider the problem of boundary stabilization for a quasilinear 2 × 2 system of first-order hyperbolic ...
Presentation

#### Conflict Resolution with Time Constraints in Trajectory-Based Arrival Management

(SESAR Joint Undertaking, 2012-11-01)
The meet-time problem in arrival management is analyzed, that is, the problem of generating conflict-free tra- jectories ...
Article

#### Chance-constrained model predictive control for spacecraft rendezvous with disturbance estimation

(Elsevier, 2012-01-01)
A robust Model Predictive Controller (MPC) is used to solve the problem of spacecraft rendezvous, using the Hill–Clohessy–Wiltshire ...
Presentation

#### Backstepping stabilization of an underactuated 3 X 3 linear hyperbolic system of fluid flow transport equations

(Institute of Electrical and Electronics Engineers (IEEE), 2012-01-01)
We investigate the boundary stabilization of a particular subset of 3×3 linear hyperbolic systems with varying coefficients ...
Presentation

#### Optimal Trajectory Generation for UAVs Using Dynamic Trajectory Modeling

(Proceedings of the 1st Workshop on Research, Development and Education on Unmanned Aerial Systems (RED-UAS 2011), 2011-11-30)
The generation of optimal trajectories for UAVs in the presence of an average horizontal wind is studied. The generation ...
Presentation

#### Trajectory Planning for Spacecraft Rendezvous with On / Off Thrusters

(Elsevier, 2011-01-01)
The objective of this work is to present a trajectory planning algorithm for spacecraft rendezvous that is able to incorporate ...
Presentation

#### Local exponential H2 stabilization of a 2x2 quasilinear hyperbolic system using backstepping

(Institute of Electrical and Electronics Engineers (IEEE), 2011-01-01)
We consider the problem of boundary stabilization for a quasilinear 2×2 system of first-order hyperbolic PDEs. We design ...
Presentation

#### Trajectory Planning for Spacecraft Rendezvous with On / Off Thrusters

(Elsevier, 2011-01-01)
The objective of this work is to present a trajectory planning algorithm for spacecraft rendezvous that is able to incorporate ...
Presentation

#### Control of the longitudinal flight dynamics of an UAV using adaptive backstepping

(Elsevier, 2011-01-01)
An adaptive backstepping approach is used to control the longitudinal dynamics of an Unmanned Air Vehicle (UAV). The ...
Presentation

#### Output-feedback control of the longitudinal flight dynamics using adaptative backstepping

(Institute of Electrical and Electronics Engineers (IEEE), 2011-01-01)
An adaptive backstepping approach is used to design an output feedback control law for the longitudinal dynamics of an ...
Presentation

#### Robust Model Predictive Control for Spacecraft Rendezvous with Online Prediction of Disturbance Bounds

(Elsevier, 2009-01-01)
A Model Predictive Controller is introduced to solve the problem of rendezvous of spacecraft, using the HCW model and ...
Article

#### A closed-form feedback controller for stabilization of magnetohydrodynamic channel flow

(Institute of Electrical and Electronics Engineers (IEEE), 2009-01-01)
We present a PDE boundary controller that stabilizes the velocity, pressure, and electromagnetic fields in a magnetohydrodynamic ...
Article

#### Control of 1-D parabolic PDEs with Volterra nonlinearities, Part I: Design

(Elsevier, 2008-01-01)
Boundary control of nonlinear parabolic PDEs is an open problem with applications that include fluids, thermal, ...
Article

#### Control for fast and stable laminar-to-high-Reynolds-numbers transfer in a 2D Navier-Stokes channel flow

(American Institute of Matematical Sciences, 2008-01-01)
We consider the problem of generating and tracking a trajectory between two arbitrary parabolic profiles of a periodic 2D ...
Article

#### A Closed-Form Feedback Controller for Stabilization of the Linearized 2D Navier-Stokes Poisseuille System

(Institute of Electrical and Electronics Engineers (IEEE), 2005-01-01)
We present a formula for a boundary control law which stabilizes the parabolic profile of an infinite channel flow, which ...
Presentation

#### Volterra boundary control laws for a class of nonlinear parabolic partial differential equations

(Elsevier, 2004-01-01)
The efforts on boundary control of general classes of nonlinear parabolic PDEs with nonlinearities of superlinear growth ...