Observers for Position Estimation Using Bearing and Biased Velocity Information

Autor: Tarek Hamel, Robert Mahony, Claude Samson, Florent Le Bras

Publikováno v: Sensing and Control for Autonomous Vehicles ISBN: 9783319553719

This chapter considers the questions of observability and design of observers for position estimates of an object moving in \(\mathbb {R}^n\). The scenario considered assumes a possibly biased measurement of velocity along with bearing or direction m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc78f77e84859ee0a4ec1497258f85f7
https://doi.org/10.1007/978-3-319-55372-6_1

Dynamic Image-Based Visual Servo Control For An Aerial Robot: Theory and Experiments

Autor: Florent Le Bras, Paolo Binetti, Tarek Hamel, Robert Mahony

Publikováno v: International Journal of Optomechatronics. 2:296-325

This article considers the question of dynamic image-based visual servo control for a vertical take-off and landing unmanned aerial vehicle. The visual targets considered are colored blobs on a flat surface to which the normal direction is known. A f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7fe0b630f1227b7cebfd1a273526c37
https://doi.org/10.1080/15599610802303579

Observer design for position and velocity bias estimation from a single direction output

Autor: Claude Samson, Florent Le Bras, Tarek Hamel, Robert Mahony

Publikováno v: Decision and Control (CDC), 2015 IEEE 54th Annual Conference on
CDC 2015-54th IEEE Conference on Decision and Control
CDC 2015-54th IEEE Conference on Decision and Control, Dec 2015, Osaka, Japan. pp.7648-7653, ⟨10.1109/CDC.2015.7403428⟩
CDC

This paper addresses the problem of estimating the position of an object moving in $R^n$ from direction and velocity measurements. After addressing observability issues associated with this problem, a nonlinear observer is designed so as to encompass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7618674b0d46f07178e9da764f99594b
https://hal.science/hal-01377787

Nonlinear IBVS controller for the flare maneuver of fixed-wing aircraft using optical flow

Autor: Rita Cunha, Pedro Serra, Tarek Hamel, Carlos Silvestre, Florent Le Bras

Publikováno v: CDC

This paper describes a nonlinear Image-Based Visual Servo (IBVS) controller for the Flare phase of the landing maneuver of a fixed-wing aircraft in the presence of wind gust. Optic-Flow and 2D image features are exploited from the image of the runway

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ee98e813c7f42d09b5ffdf7f2d69982
https://doi.org/10.1109/cdc.2010.5717829

Instationary Heat-Constrained Trajectory Optimization of a Hypersonic Space Vehicle by ODE–PDE-Constrained Optimal Control

Autor: Gottfried Sachs, Hans Josef Pesch, Florent Le Bras, Markus Wächter, Kurt Chudej

Publikováno v: Variational Analysis and Aerospace Engineering ISBN: 9780387958569

During ascent and reentry of a hypersonic space vehicle into the atmosphere of any heavenly body, the space vehicle is subjected, among others, to extreme aerothermic loads. Therefore, an efficient, sophisticated and lightweight thermal protection sy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0839857a74ad5db4e1560c28d1c22db9
https://doi.org/10.1007/978-0-387-95857-6_8