Results 21 to 30 of about 4,609,539 (279)

Design of Novel Laser Crosslink Systems Using Nanosatellites in Formation Flying: The VISION

open access: yesAerospace, 2022
With growth in data volume from space missions, interest in laser communications has increased, owing to their importance for high-speed data transfer in the commercial and defense fields, spaceborne remote sensing, and surveillance.
Geuk-Nam Kim   +10 more
doaj   +1 more source

Optimal Formation Trajectory-Planning Using Parameter Optimization Technique [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
Some methods have been presented to get optimal formation trajectories in the step of configuration or reconfiguration, which subject to constraints of collision avoidance and final configuration.
Hyung-Chul Lim   +3 more
doaj   +1 more source

An observer based distributed controller for formation flying of satellites [PDF]

open access: yesProceedings 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
openaire   +1 more source

Characterization of multi-scale ionospheric irregularities using ground-based and space-based GNSS observations

open access: yesSatellite 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
doaj   +1 more source

Filtering performance analyizing for Relative Navigation using Single Difference Carrier-Phase GPS [PDF]

open access: yesJournal 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

ESTABLISHMENT OF SATELLITE FORMATION WITH INITIAL UNCERTAINTY BY CONTROL LYAPUNOV FUNCTION APPROACH

open access: yesJournal 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
doaj   +1 more source

Analysis of Linear and Nonlinear Relative Orbit Dynamics for Satellite Formation Flying [PDF]

open access: yesJournal 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
doaj   +1 more source

HYBRID CONSTRAINED FORMATION FLYING CONTROL OF MICRO-SATELLITES

open access: yesIFAC 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

A Survey of Precision Formation Relative State Measurement Technology for Distributed Spacecraft

open access: yesAerospace, 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

Solar sail formation flying for deep-space remote sensing [PDF]

open access: yes, 2009
In this paper we consider how 'near' term solar sails can be used in formation above the ecliptic plane to provide platforms for accurate and continuous remote sensing of the polar regions of the Earth.
Biggs, James, McInnes, Colin
core   +4 more sources

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