Results 11 to 20 of about 14,731 (266)

Dynamics and Control of Satellite Formations Invariant under the Zonal Harmonic Perturbation

Applied Sciences, 2023
A satellite formation operating in low-altitude orbits is subject to perturbations associated to the higher-order harmonics of the gravitational field, which cause a degradation of the formation configurations designed based on the unperturbed model of ...
Stefano Carletta
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A Four-Dimensional Space-Time Automatic Obstacle Avoidance Trajectory Planning Method for Multi-UAV Cooperative Formation Flight

Drones, 2022
Trajectory planning of multiple unmanned aerial vehicles (UAVs) is the basis for them to form the formation flight. By considering trajectory planning of multiple UAVs in formation flight in three-dimensional space, a trajectory planning method in four ...
Jie Zhang, Hanlin Sheng, Qian Chen, Han Zhou, Bingxiong Yin, Jiacheng Li, Mengmeng Li   +6 more
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Adaptive Backstepping Control for Satellite Formation Flying with Mass Uncertainty [PDF]

Journal of Astronomy and Space Sciences, 2006
Satellite formation flying has become a critical issue in the aerospace engineering because it is considered as an enabling technology for many space missions.
Hyung-Chul Lim, Hyochoong Bang, Sangjong Lee   +2 more
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Distributed Predefined-Time Attitude Consensus Control for Multiple Uncertain Spacecraft Formation Flying

IEEE Access, 2022
This paper addresses the distributed predefined-time attitude consensus problem for multiple uncertain spacecraft systems in the presence of model uncertainties and external disturbances.
Zeng Wang, Liangmou Hu, Jun Ma
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Filtering performance analyizing for Relative Navigation using Single Difference Carrier-Phase GPS [PDF]

Journal of Astronomy and Space Sciences, 2008
Satellite formation flying can provide the platform for interferometric observation to acquire the precise data and ensure the flexibility for space mission.
In-Kwan Park, Sang-Young Park, Kyu-Hong Choi, Sungki Cho, Jong-Uk Park   +4 more
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Formation Flying Lyapunov-Based Control Using Lorentz Forces

Aerospace, 2023
A formation flying control algorithm using the Lorentz force for Low Earth Orbits to achieve a trajectory with required shape and size is proposed in the paper.
Danil Ivanov, Goncalo Amaro, Yaroslav Mashtakov, Mikhail Ovchinnikov, Anna Guerman   +4 more
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Robust Satellite Formation Flying Controller Design Subject to Communication Delays

IEEE Access, 2020
A robust control method is proposed to address the satellite formation flying problem subject to communication delays. Each satellite dynamics involves nonlinear dynamics, parametric uncertainties, and external disturbances.
Yue Gao, Hao Liu, Yu Tian
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Consensus and coordination on groups SO(3) and S3 over constant and state-dependent communication graphs

Automatika, 2021
We address several problems of coordination and consensus on $ SO(3) $ and $ S^3 $ that can be formulated as minimization problems on these Lie groups.
Aladin Crnkić, Milojica Jaćimović, Vladimir Jaćimović, Nevena Mijajlović   +3 more
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Concept and Feasibility Evaluation of Distributed Sensor-Based Measurement Systems Using Formation Flying Multicopters

Atmosphere, 2021
Unmanned aerial vehicles (UAVs) have been used for increasing research applications in atmospheric measurements. However, most current solutions for these applications are based on a single UAV with limited payload capacity.
Juntang Yang, Yogesh Khedar, Mohamed Khalil Ben-Larbi, Jan Backhaus, Astrid Lampert, Ulf Bestmann, Enrico Stoll   +6 more
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Autonomous Real-time Relative Navigation for Formation Flying Satellites [PDF]

Journal of Astronomy and Space Sciences, 2009
Relative navigation system is presented using GPS measurements from a single-channel global positioning system (GPS) simulator. The objective of this study is to provide the real-time inter-satellite relative positions as well as absolute positions for ...
Sunhwa Shim, Sang-Young Park, Kyu-Hong Choi   +2 more
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