Results 51 to 60 of about 1,938 (262)
Robust Control of Spacecraft Formation Flying Using Optimal Sliding Mode [PDF]
فصلنامه علوم و فناوری فضایی, 2013 In this paper, in order to control the relative motion for spacecraft formation flying, an optimal sliding mode controller is presented. This controller is designed based on the linearized equations of relative motion in circular orbit and applied to ...
A. Imani, M. Bahrami
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The Development of high fidelity linearized J2 models for satellite formation flying control [PDF]
, 2005 The inclusion of the linearized J2 effect in the Hill equations of relative motion gives greater insight into satellite formation flying dynamics, and the opportunity to investigate alternative feedback control strategies for the station keeping task.
Roberts, Peter C. E. +1 more
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ChemSusChem, Volume 18, Issue 6, March 15, 2025.The transformation of CO2 into chemical building blocks is essential for a net‐zero energy future. Plasma‐chemical processing offers promising potential to achieve this. Here, we explore a temperature‐dependent plasma‐chemical reaction mechanism, revealing a shift from electron‐driven to thermal‐driven CO2 conversion regimes.
Aswath Mohanan +2 more
wiley +1 more source
MUSTANG: A Technology demonstrator for formation flying and distributed systems technologies in space [PDF]
, 2005 Future astronomical, surveillance and communications concepts are expected to depend heavily upon distributed systems – many satellites flying in formation to form synthesized detector arrays many times the size of each individual spacecraft.
Roberts, Peter C. E. +2 more
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Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Formation Flying Concept for Close Remote Sensing Satellites [PDF]
, 2005 Synthetic aperture radar (SAR) interferometry is a well-established technique based on the stereoscopic effect induced by matching SAR images obtained from slightly different orbital positions.
Arbinger, Christian +3 more
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VAMOS – Verification of Autonomous Mission Planning On-board a Spacecraft [PDF]
, 2013 For typical ground based mission planning systems for low earth satellite missions one major drawback can be detected: The reaction time to on-board-detected events, which includes at least two ground station contacts.
Lenzen, Christoph +2 more
core +1 more source
The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review
Journal of Field Robotics, EarlyView.ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton +4 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Development of a relative motion model for satellite formation flying around L2 [PDF]
, 2004 Paper given at Dynamics and Control of Systems and Structures in Space (DCSSS), 6th conference, Riomaggiore, Italy, July 2004A technique for satellite formation flying modelling in LEO is applied at L2.
Roberts, Jennifer A.
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