Search Results - "Leal, Rogelio Lozano"

Wind-gust Compensation Algorithm based on High-gain Residual Observer to Control a Quadrotor Aircraft: Real-time Verification Task at Fixed Point by Rodríguez-Mata, Abraham Efraim, González-Hernández, Ivan, Rangel-Peraza, Jesus Gabriel, Salazar, Sergio, Leal, Rogelio Lozano

“…Wind is considered a strong disturbance for quadrotor aircrafts (UAV) when an outdoor task at a fixed point is carried out. The effect of wind produces a…”
Get full text

Real-time altitude control for a quadrotor helicopter using a super-twisting controller based on high-order sliding mode observer by Gonzalez-Hernandez, Ivan, Palacios, Filiberto Munoz, Cruz, Sergio Salazar, Quesada, Eduardo Steed Espinoza, Leal, Rogelio Lozano

“…This article addresses the problem of altitude tracking for unmanned aircraft system when the altitude velocity is unknown, because in a practical…”
Get full text

Dynamic modeling and robust control for underwater vehicles by using dual quaternions by Zamora Suárez, Ángel Eduardo, Muñoz Palacios, Filiberto, Salazar Cruz, Sergio, Lozano Leal, Rogelio, Zamora-Justo, José Alberto

“…A novel representation using dual quaternions for the dynamical model of underwater vehicles is presented. Dual quaternions are developed for terms such as…”
Get full text

Sensorless adaptive field oriented control of brushless motor by Cabarbaye, Aurelien, Lozano Leal, Rogelio, Bonilla Estrada, Moiss

“…"Field Oriented Control" (FOC) is the the most efficient way to control a bruchless motor. This control generates constantly a magnetic field perpendicular to…”
Get full text

VTOL aircraft concept, suitable for unmanned applications, with equivalent performance compared to conventional aeroplane by Cabarbaye, Aurelien, Lozano Leal, Rogelio, Fabiani, Patrick, Bonilla Estrada, Moises

“…The UAVs business experiences currently a strong growth in particular thanks to the popularisation of its mini class (e.g. DJI Phantom, Parrot Bebop...)…”
Get full text

Stability Analysis of a Human Arm Interacting with a Force Augmenting Device by Gadi, Suresh K., Osorio-Cordero, Antonio, Lozano-Leal, Rogelio, Garrido, Ruben A.

“…This paper presents a stability analysis of the interaction between a human and a linear moving Force Augmenting Device (FAD). The analysis employs a…”
Get full text

Adaptive Force/Position Control of Constrained Manipulators with Flexible Joints by Bernard, Brogliato, Rogelio, Lozano-Leal

“…This paper presents adaptive control strategies for flexible Joint robot manipulators subject to holonomic constraints which relies on the joint coordinates…”
Get full text

A New Positioning Algorithm Robust to Measured Distances Errors for Non-Overdetermined Systems by Arellano-Cruz, Luis A., Galvan-Tejada, Giselle M., Lozano-Leal, Rogelio

“…In the position estimation topic, it is well-known that a minimum of three reference stations or anchors are required to solve the positioning problem by…”
Get full text

Performance Comparison of Positioning Algorithms for UAV Navigation Purposes based on Estimated Distances by Arellano-Cruz, Luis A., Galvan-Tejada, Giselle M., Lozano-Leal, Rogelio

“…A comparison of four algorithms of positioning for unmanned aerial vehicles (UAVs) navigation is presented in this work. In particular, the radical axis,…”
Get full text

Standing Mobility Exoskelton Device by Hernandez, Joel Hernandez, Lopez Gutierrez, J. Ricardo, Cruz, Sergio Salazar, Leal, Rogelio Lozano

“…This paper presents the development of an exoskeleton mounted on a mobile base to assist people in the Sit-to-Stand action and focused in the rehabilitation of…”
Get full text

Real-time people detection from thermal images by using an Unmanned Aerial System by Morfin-Santana, Alejandro, Palacios, Filiberto Munoz, Cruz, Sergio Salazar, Gonzalez-Hernandez, Ivan, Espinoza Quesada, Eduardo S., Leal, Rogelio Lozano

“…In this paper a real-time approach for human bodies detection at outdoors environments by using thermal images taken from an Unmanned Aerial System (UAS) is…”
Get full text

Depth control of an underwater vehicle using robust PD controller: real-time experiments by Suarez, Angel E. Zamora, Magallanes, Adrian Manzanilla, Rangel, Miguel Angel Garcia, Leal, Rogelio Lozano, Cruz, Sergio Salazar, Palacios, Filiberto Munoz

“…The design of a robust controller for tracking a depth trajectory of an underwater vehicle in presence of unknown perturbations and uncertainties in the…”
Get full text

Nonsingular Fast Terminal Sliding Mode Control for an Autonomous Underwater Vehicle by Zamora Suarez, Angel E., Garcia Rangel, Miguel Angel, Magallanes, Adrian Manzanilla, Leal, Rogelio Lozano, Cruz, Sergio Salazar, Palacios, Filiberto Munoz

“…In this article, the mathematical model based on quaternions for an underwater autonomous vehicle (AUV) of 6 DOF is developed, to avoid singularities that…”
Get full text

Strictly positive real transfer functions revisited by Lozano-Leal, R., Joshi, S.M.

“…The two most commonly used definitions of strictly positive real (SPR) transfer functions are reviewed. Contrary to what has been suggested in the literature,…”
Get full text

Robust adaptive regulation without persistent excitation by Lozano-Leal, R.

“…A globally convergent adaptive regulator for minimum or nonminimum phase systems subject to bounded disturbances is presented. The control strategy is designed…”
Get full text

Point-to-point regulation of a robot with flexible joints including electrical effects of actuator dynamics by Ailon, A., Lozano-Leal, R., Gil', M.

“…This paper considers the set-point tracking problem in rigid and flexible-joint robots when both the mechanical as well as the electrical effects of the…”
Get full text

Model reference robust adaptive control without a priori knowledge of the high frequency gain by Lozano-Leal, R., Collado, J., Mondie, S.

“…A novel model-reference robust adaptive controller that does not require a priori knowledge of the high-frequency-gain sign is proposed. The scheme is…”
Get full text

Self-triggered control for the stabilization of linear systems by Durand, S., Guerrero-Castellanos, J. F., Lozano-Leal, R.

“…Contrary to the classical (time-triggered) principle that samples the system states and calculates the control signal in a periodic fashion, a self-triggered…”
Get full text

Passivity based adaptive control for mechanical manipulators using LS-type estimation by Leal, R.L., DeWit, C.C.

“…A novel adaptive controller for mechanical manipulators is presented. The convergence analysis is based on the passivity properties of the plant and those of…”
Get full text

Adaptive control for systems with bounded disturbances by Lozano-Leal, R., Collado, J.

“…The authors present an identification algorithm that can be used to design globally stable indirect adaptive controllers for minimum- and nonminimum-phase…”
Get full text