Results 71 to 80 of about 4,477,022 (227)

Decentralized State Estimation Algorithm of Centralized Equivalent Precision for Formation Flying Spacecrafts Based on Junction Tree

International Journal of Aerospace Engineering, 2015
As centralized state estimation algorithms for formation flying spacecraft would suffer from high computational burdens when the scale of the formation increases, it is necessary to develop decentralized algorithms.
Mengyuan Dai, Hua Mu, Meiping Wu, Zhiwen Xian   +3 more
doaj   +1 more source

The Rational Design of Space Agreements: How Bilateralism Shapes Powerful States' Design Preferences

Regulation &Governance, EarlyView.
ABSTRACT The global governance of outer space relies heavily on international agreements, yet the institutional forms of these agreements remain underexplored. This article introduces a new dataset on various design features of 952 space agreements, offering the first large‐N overview of institutional design in space governance.
Jean‐Frédéric Morin, Philippe Evoy, Cynthia Couette   +2 more
wiley   +1 more source

Optimal sliding mode tracking control of spacecraft formation flying with limited data communication

Advances in Mechanical Engineering, 2018
This article deals with the optimal tracking control problem for spacecraft formation flying via a sliding mode approach in the presence of external disturbances and signal quantization, where both state quantization and input quantization are considered.
Ruixia Liu, Ming Liu, Xibin Cao, Yuan Liu   +3 more
doaj   +1 more source

Adaptive Tracking Control for Spacecraft Formation Flying System via Modified Fast Integral Terminal Sliding Mode Surface

IEEE Access, 2020
In this paper, the fast integral terminal sliding mode control for spacecraft formation flying system is concerned subjected to external disturbances and parametric uncertainties. First, a novel modified fast integral terminal sliding mode control law is
Xiaohan Lin, Xiaoping Shi, Shilun Li
doaj   +1 more source

Dynamic Interfacial Electronics—Foundations, Scopes and Endless Frontiers of the Master Field

SmartSys, Volume 2, Issue 4, December 2026.
ABSTRACT Interfaces in classical physics, chemistry, and electronics are typically treated as static boundaries, yet a growing body of research reveals that dynamically evolving interfaces can actively generate, manipulate, transport, and utilize both electronic and ionic processes at interfaces.
Zhong Lin Wang, Jie Wang
wiley   +1 more source

Satellite Formation Flying Determination with Low-Cost GNSS Receivers Raw Data

Remote Sensing
Low-cost missions are ideal for applications that require spacecraft formation flying. The use of GNSS signals provides an economical solution to determine the orbital status of the formation.
David Forero, Segundo Esteban, Oscar R. Polo   +2 more
doaj   +1 more source

Ground‐Based Validation of Hera's Spacecraft Monitoring Camera

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Hera is an ESA contribution to the international planetary defense effort. It is a deep‐space mission to the binary asteroid system Didymos and Dimorphos, designed to investigate the effects of NASA's Double Asteroid Redirection Test (DART), demonstrate autonomous navigation, and support close‐proximity investigation by two CubeSats.
D. T. Lakey, A. Schiavo, C. Guerbuez
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, Fiedler, Hauke, D'Amico, Simone, Montenbruck, Oliver   +3 more
core  

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey, K. Cawse‐Nicholson, J. B. Fisher, S. J. Hook, G. C. Hulley, C. M. Lee, M. Silvestri, J. O. Thompson, I. M. Watson   +8 more
wiley   +1 more source

Model‐Data Comparison of Electron Energization Associated With Kinetic Alfvén Waves in the Near Earth Magnetotail

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract A model‐data comparison between Gyrofluid‐Kinetic Electron simulations and MMS satellite observations of kinetic Alfvén waves (KAW) and associated electron energization in the near Earth magnetotail is presented. The observations reveal 10 keV electron beams embedded within intense KAW field‐aligned currents.
A. J. Hull, P. A. Damiano, J. R. Johnson, C. C. Chaston   +3 more
wiley   +1 more source