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Multiple Spacecraft Formation Flying Control around Artificial Equilibrium Point Using Propellantless Approach
Published 2022-01-01“…Thirdly, based on a new double power combination function reaching law, a fast integral terminal sliding mode control methodology (MFITSM) is ameliorated to achieve orbital tracking rapidly, which has better robustness against external disturbances and the buffeting effect during spacecraft propulsion simultaneously. To properly allocate control inputs, a novel optimal allocation scheme is designed to calculate the charge product of the spacecrafts and sail attitude angles, which can make the magnitude of the acceleration required from the Coulomb propulsion system minimum and avoid formation geometry instabilities by balancing electrostatic interaction between adjacent spacecraft. …”
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SFDA-MEF: An Unsupervised Spacecraft Feature Deformable Alignment Network for Multi-Exposure Image Fusion
Published 2025-01-01Subjects: Get full text
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43
Design and experimental studies of power source of arcjet thrusters for corrective propulsion systems of small spacecraft
Published 2019-11-01“…The article describes a power source designed for arcjet thrusters of corrective propulsion systems of small spacecraft. The source is galvanically isolated and provides high energy efficiency at a consistent load. …”
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Performance of Gradient-Based Solutions versus Genetic Algorithms in the Correlation of Thermal Mathematical Models of Spacecrafts
Published 2017-01-01“…The correlation of the thermal mathematical models (TMMs) of spacecrafts with the results of the thermal test is a demanding task in terms of time and effort. …”
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Capabilities for Probing of Upper Atmosphere Density Variations and Seismic-Orbital Effects Using Small-Size Spacecraft
Published 2020-12-01Subjects: “…the spacecraft…”
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Adaptive Fixed-Time 6-DOF Coordinated Control of Multiple Spacecraft Formation Flying with Input Quantization
Published 2020-01-01“…This paper investigates the fixed-time coordinated control problem of six-degree-of-freedom (6-DOF) dynamic model for multiple spacecraft formation flying (SFF) with input quantization, where the communication topology is assumed directed. …”
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Research on Mass Center Identification for Gravitational Wave Detection Spacecraft with Guaranteed Laser Link Pointing Accuracy
Published 2025-01-01Subjects: “…gravitational wave detection spacecraft…”
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Coupling Dynamic Behavior Characteristics of a Spacecraft Beam with Composite Laminated Structures and Large-Scale Motions
Published 2018-01-01“…A nonlinear dynamic modeling method for a spacecraft body composed of a laminated composite beam undergoing large rotation is proposed in this paper. …”
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Fast Attitude Maneuver of a Flexible Spacecraft with Passive Vibration Control Using Shunted Piezoelectric Transducers
Published 2019-01-01“…The proposed control design method is applied to a spacecraft containing a rigid hub and flexible appendages. …”
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Method of flight operation of software and hardware for controlling parameters of the rotational motion of small spacecraft of the Aist series
Published 2018-10-01Subjects: “…small spacecraft…”
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51
Adaptive Neural Network Variable Structure Control for Liquid-Filled Spacecraft under Unknown Input Saturation
Published 2020-01-01“…Numerical simulations are presented to illustrate the spacecraft performance obtained by using the proposed controllers.…”
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Testing the Flux Rope Paradigm for Coronal Mass Ejections Using a Three-spacecraft Encounter Event
Published 2025-01-01“…With this event, we test whether field tracings observed by a spacecraft passing near the central axis of a CME MFR (STEREO-A) can be used to successfully predict the field behavior seen by a spacecraft 17 ^∘ away (SolO), which has a more grazing encounter with the CME. …”
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Decentralized State Estimation Algorithm of Centralized Equivalent Precision for Formation Flying Spacecrafts Based on Junction Tree
Published 2015-01-01“…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. …”
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Adaptive Fixed-Time Nonsingular Terminal Sliding Mode Attitude Tracking Control for Spacecraft with Actuator Saturations and Faults
Published 2021-01-01“…The designed controller considers the saturation of the actuator output torque so that the spacecraft can operate within the saturation magnitude without on-line fault estimation. …”
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Nonsingular Integral Sliding Mode Attitude Control for Rigid-Flexible Coupled Spacecraft with High-Inertia Rotating Appendages
Published 2021-01-01“…This study addresses the challenge of attitude tracking control for a rigid-flexible spacecraft with high-inertia rotating appendages. The Lagrange method was used to establish the kinematic and dynamic models of the spacecraft. …”
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Development of algorithm for receiving and decoding input signal using MTD decoder for subscriber terminals operating with low-orbit spacecraft
Published 2021-03-01Subjects: Get full text
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Comparison of a combined torus tank with a composite isogrid support with existing design solutions
Published 2024-06-01Subjects: Get full text
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Experimental research on the technology of manufacturing and burning of aircraft structures made of multicomponent materials
Published 2020-03-01Subjects: “…separated parts of aircraft and spacecraft…”
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