Results 21 to 30 of about 2,815 (307)
Satellite Navigation, 2021 Ionospheric irregularities can adversely affect the performance of Global Navigation Satellite System (GNSS). However, this opens the possibility of using GNSS as an effective ionospheric remote sensing tool.
YuXiang Peng +4 more
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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 +4 more
doaj +1 more source
HYBRID CONSTRAINED FORMATION FLYING CONTROL OF MICRO-SATELLITES
IFAC Proceedings Volumes, 2006 Abstract This paper proposes a centralized solution to the problem of formation reconfiguration and keeping for fleets of satellites in the presence of persistent disturbances and under input-saturation and formation accuracy constraints. Relative position and attitude dynamics are considered.
Bacconi F, Mosca E, CASAVOLA, Alessandro
openaire +4 more sources
ESTABLISHMENT OF SATELLITE FORMATION WITH INITIAL UNCERTAINTY BY CONTROL LYAPUNOV FUNCTION APPROACH
Journal of Aerospace Technology and Management, 2012 In recent years, dynamics and control of satellite formation flying have been active areas of research. From the mission planning perspective, three main areas namely formation establishment, maintenance and reconfiguration have been discussed.
M. Navabi +2 more
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Analysis of Linear and Nonlinear Relative Orbit Dynamics for Satellite Formation Flying [PDF]
Journal of Astronomy and Space Sciences, 2009 Relative dynamic models of satellites which describe the relative motion between two satellites is fundamental for research on the formation flying. The accuracy of various linearized or nonlinear models of relative motion is analyzed and compared.
Han-Earl Park +3 more
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An observer based distributed controller for formation flying of satellites [PDF]
Proceedings of the 2011 American Control Conference, 2011 In this paper, a novel nonlinear observer and controller framework is suggested for achieving formation control of a cluster of satellites. Exploiting the skew symmetry in the satellite dynamics, a novel nonlinear observer which has roots in the super-twist sliding mode observer is proposed.
Prathyush P. Menon, Christopher Edwards
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Flight Dynamics Operations of the TanDEM-X Formation [PDF]
, 2012 Since end of 2010 the German TerraSAR-X and TanDEM-X satellites are routinely operated as the first configurable single-pass Synthetic Aperture Radar interferometer in space. The two 1340 kg satellites fly in a 514 km sun-synchronous orbit.
Aida, Saika +4 more
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Satellite formation flying for an interferometry mission [PDF]
, 2005 The autonomous formation flying of multiple spacecraft to replace a single large satellite will be an enabling technology for many future missions. In this research, the current status of formation flying missions and technologies is determined, and ...
Roberts, Jennifer A.
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Formation Flight in Low-Earth-Orbit at 150m Distance; AOCS In-Orbit Experience [PDF]
, 2012 AOCS operations for two satellites flying at ~514 km altitude with unprecedented small separation of 150 m upwards pose various new challenges and require creative solutions.
Schulze, Daniel +2 more
core +1 more source
A Survey of Precision Formation Relative State Measurement Technology for Distributed Spacecraft
Aerospace, 2022 High-precision relative-state measurement technology is one of the key technologies for achieving the precision formation flying of distributed spacecraft.
Zhang Zhang +5 more
doaj +1 more source