Results 251 to 260 of about 52,012 (299)

An intelligent control concept for formation flying satellites

International Journal of Robust and Nonlinear Control, 2002
AbstractThis paper deals with the determination of initial conditions and the design of fuel‐balancing orbit control laws for a formation of satellites. Hill's equations describe the linearized dynamics of relative motion between two satellites. They admit bounded relative orbit solutions as special cases.
Vadali, S. R., Vaddi, S. S., Alfriend, K. T.   +2 more
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Adaptive nonlinear control of satellite formation flying

Guidance, Navigation, and Control Conference and Exhibit, 1999
This paper considers the problem of relative position control for multiple satellite for- mation flying (MSFF). Specifically, the full nonlin- ear dynamics describing the relative positioning of MSFF are used to develop a Lyapunov-based, non- linear adaptive control law that guarantees global asymptotic convergence of the position tracking er- ror in ...
M. de Queiroz, V. Kapila, Q. Yan
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Agent Based Controller for Satellite Formation Flying

2005 International Conference on Intelligent Sensors, Sensor Networks and Information Processing, 2005
In this paper an agent based control scheme for satellite formation flying is discussed. The underlying idea of our design is to use a multi-agent architecture for satellite formation flying control. The architecture is designed to enable autonomous formation flying activities. The performance requirements and algorithms are described.
K.K.T. Thanapalan, S.M. Veres
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FormSat, a scalable formation flying communication satellite system

2010 IEEE Aerospace Conference, 2010
The competitive and evolving nature of the commercial communications satellite market sector, combined with the limited number of allocations in geosynchronous orbit, have led to a steady increase in the complexity, size and weight of satellites. Satellite manufacturers in the sector have suffered from increased non-recurring engineering costs and low ...
Braukhane, A., Arza, M., Bacher, M., Calaprice, M., Fiedler, H., Koehne, V., McGuire, H.R., Rivera, J.J.   +7 more
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Satellite formation flying using along-track thrust

Acta Astronautica, 2007
Abstract The formation flying of satellites using thrust in along-track direction is explored in the present paper. The system comprising of a leader and a follower satellite is considered and a linear controller is developed to achieve a desired formation.
Kumar, KD, Bang, HC Bang, Hyochoong, Tahk, MJ Tahk, Min-Jea   +2 more
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On the formation flying of satellite constellations

Chinese Astronomy and Astrophysics, 2004
Abstract From the viewpoint of orbit dynamics, the formation flying of the satellites of a constellation and the accompanying flying in satellite-satellite tracking are affected by the following dynamical mechanisms: (1) The main characteristics of the variations of disturbed orbits determine the space configuration of the satellites.
Lin Liu, Hai-hong Wang, Jian-bo Ma
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Satellite affine formation flying with obstacle avoidance

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2019
This paper studies the affine formation control problem for a group of flying satellites with the performance of obstacle avoidance. Assuming that leader satellites can detect the locations of obstacles, we first investigate how to plan advisable trajectories for leader satellites such that they can smoothly pass through some specific types of ...
Liangming Chen, Zhongqi Sun, Chuanjiang Li, Baolong Zhu, Cheng Wang   +4 more
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Adaptive Dynamic Inversion for Satellite Formation Flying

2021
The benefit of satellite formation flying can truly be realized with greater mission flexibility such as higher inter-satellite separation, formation in elliptic orbits, etc. However, under the above-enhanced conditions, linear system dynamics based control design approaches fail to achieve the desired objectives.
S. Mathavaraj, Radhakant Padhi
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Autonomous Relative Navigation for Formation Flying Satellites

2006 1st International Symposium on Systems and Control in Aerospace and Astronautics, 2006
Autonomous navigation technology of formation flying satellites is one of the key technologies for formation flying. The objective of this paper is to derive a set of Hill-like equations suited for the tandem formation and investigate the relative state (including relative position, relative velocity and relative attitude) determination of satellites ...
null Yunhua Wu, null Xibin Cao, null Dan Xue   +2 more
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Cooperative fault accommodation in formation flying satellites

2008 IEEE International Conference on Control Applications, 2008
In this paper a new fault accommodation algorithm based on a two-level architecture is proposed for satellite formation missions. In this two-level framework, the notion of formation-level fault recovery (FLFR) is proposed, and the task of performance monitoring (PM) is defined in the high level (HL). By using the information provided by the PM module,
S.M. Azizi, K. Khorasani
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