Results 21 to 30 of about 244,139 (311)

Distributed Predefined-Time Attitude Consensus Control for Multiple Uncertain Spacecraft Formation Flying

open access: yesIEEE 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
doaj   +1 more source

Matching times of leading and following suggest cooperation through direct reciprocity during V-formation flight in ibis [PDF]

open access: yes, 2015
One conspicuous feature of several larger bird species is their annual migration in V-shaped or echelon formation. When birds are flying in these formations, energy savings can be achieved by using the aerodynamic up-wash produced by the preceding bird ...
Alan M. Wilson   +11 more
core   +2 more sources

Influence of Satellite Motion Control System Parameters on Performance of Space Debris Capturing

open access: yesAerospace, 2020
Relative motion control problem for capturing the tumbling space debris object is considered. Onboard thrusters and reaction wheels are used as actuators. The nonlinear coupled relative translational and rotational equations of motion are derived.
Mahdi Akhloumadi, Danil Ivanov
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

Bio-inspired vision-based leader-follower formation flying in the presence of delays [PDF]

open access: yes, 2016
Flocking starlings at dusk are known for the mesmerizing and intricate shapes they generate, as well as how fluid these shapes change. They seem to do this effortlessly.
Oyekan, John
core   +2 more sources

Satellite Formation Flying for Space Advertising: From Technically Feasible to Economically Viable

open access: yesAerospace, 2022
The paper presents a feasibility study of satellite formation-flying missions for space advertising. To estimate a space advertising mission viability, the global population coverage model is designed and the demonstration schedule with a focus on larger
Shamil Biktimirov   +2 more
doaj   +1 more source

Pattern transition in spacecraft formation flying using bifurcating potential field [PDF]

open access: yes, 2012
Many new and exciting space mission concepts have developed around spacecraft formation flying, allowing for autonomous distributed systems that can be robust, scalable and flexible.
Bennet, Derek James, McInnes, Colin
core   +1 more source

Consensus and coordination on groups SO(3) and S3 over constant and state-dependent communication graphs

open access: yesAutomatika, 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   +3 more
doaj   +1 more source

Six-axis decentralized control design for spacecraft formation flying mission [PDF]

open access: yes, 2006
This contribution addresses the control design for the three-spacecraft formation flying interferometry mission Pegase. The operational mode considered is the high-precision nulling phase.
Alazard, Daniel   +3 more
core   +1 more source

Cooperative monocular-based SLAM for multi-UAV systems in GPS-denied environments [PDF]

open access: yes, 2018
This work presents a cooperative monocular-based SLAM approach for multi-UAV systems that can operate in GPS-denied environments. The main contribution of the work is to show that, using visual information obtained from monocular cameras mounted onboard ...
Grau Saldes, Antoni   +3 more
core   +3 more sources

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