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Theses
Dynamics of formation flying
Dynamics of formation flying
Abstract : Relative motion is a key technology for future missions using formation flying. In my thesis, I have developed three different methods to study it, as function of its representation. Cartesian coordinates have been the main tool to study the relative motions, even if they present some drawbacks in terms of equations linearisation and introduction of perturbations. These limitations can be overcome using differential orbital elements. A third representation of the relative motion is the local orbital elements. They are very interesting to study relative trajectories. The use of differential orbital elements enable the introduction of the main perturbations. For low orbits, the dominant perturbation is the gravity field, and in particular, the oblateness of the Earth. For very high orbits, solar radiation pressure plays a main role when satellites do not have the same ratio surface to mass. The study of relative motion is concluded with the analysis of two missions. First, I have analyzed the interest of formation flying for gravity field determination. In order to do so, I have obtained the sensitivity equations of intersatelllite measurements to geophysical parameters. Second, I have worked on the characteristics of high eccentric orbits (HEO) for formation flying. I have analyzed different aspects of Simbol-X mission.
Keywords :
astronomy
Cited literature [90 references]
https://tel.archives-ouvertes.fr/tel-01958557
Contributor : Virginie Barbet <>
Submitted on : Tuesday, December 18, 2018 - 10:12:27 AM
Last modification on : Wednesday, September 23, 2020 - 4:37:53 AM
Long-term archiving on: : Tuesday, March 19, 2019 - 4:02:12 PM
Contributor : Virginie Barbet <>
Submitted on : Tuesday, December 18, 2018 - 10:12:27 AM
Last modification on : Wednesday, September 23, 2020 - 4:37:53 AM
Long-term archiving on: : Tuesday, March 19, 2019 - 4:02:12 PM
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OBSPM_8648.pdf
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