نتایج جستجو برای: station keeping

تعداد نتایج: 85923  

Journal: :Journal of Astronomy and Space Sciences 2021

For the vast majority of geostationary satellites currently in orbit, station keeping activities including orbit determination and maneuver planning execution are ground-directed dependent on availability ground-based satellite control personnel facilities. However, a requirement linked to autonomy survivability cases interrupted ground support is often one stipulated provisions platform design...

2002
Xavier Cufí Rafael García Pere Ridao

This paper presents an automatic vision-based system for UUV station keeping. The vehicle is equipped with a down-looking camera, which provides images of the sea-floor. The station keeping system is based on a feature-based motion detection algorithm, which exploits standard correlation and explicit textural analysis to solve the correspondence problem. A visual map of the area surveyed by the...

Journal: :Journal of Marine Science and Engineering 2021

Offshore vessels (OVs) often require precise station-keeping and some vessels, for example, involved in geotechnical drilling, generally use Spread Mooring (SM) or Dynamic Positioning (DP) systems. Most of these are equipped with both systems to cover all ranges water depths. However, determining which system a particular operational scenario depends on many factors requires significant balanci...

Journal: :Frontiers in Applied Mathematics and Statistics 2018

Journal: :Aerospace 2022

We propose two approaches based on feedforward control and model-predictive control, respectively, to solve the station-keeping problem of an electric-propulsion geostationary Earth orbit (GEO) satellite, whose thrusters are mounted robotic arms its anti-nadir face. This novel configuration enables a wider range thrust direction, making it possible regard direction as variables. To this problem...

2008
D. Arzelier A. Théron D. Peaucelle J. Fourcade

Groups of satellites flying in formation require maintaining the specific relative geometry of the formation with high precision. This requirement implies to consider the problem of relative station keeping in a renewed framework. In this framework, issues related to the derivation of reliable relative models as well as to the peculiarity of the synthesis problems must be jointly considered. Th...

Journal: :Journal of Guidance Control and Dynamics 2022

No AccessEngineering NotesStation-Keeping of L2 Halo Orbits Under Sampled-Data Model Predictive ControlMohamed Elobaid, Mattia Mattioni, Salvatore Monaco and Dorothée Normand-CyrotMohamed Elobaid https://orcid.org/0000-0003-3446-288XSapienza University Rome, 00185 Italy*Ph.D. Student, Department Computer, Control Management Engineering L2S, via Ariosto 25; ; (Corresponding Author).Search for mo...

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