Modeling and Analysis of Staged Constellation Deployment from a Single-Unit System
AerospaceA novel satellite architecture and deployment method is proposed to reduce the logistical cost and complexity of launching and dispersing satellite constellations.
Daniel Cumbo, Marc Anthony Azzopardi
doaj +1 more source
Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN
Advanced Functional Materials, EarlyView.Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk +6 more
wiley +1 more source
Autonomous satellite constellation for enhanced Earth coverage using coupled selection equations
, 2013 This paper presents a novel solution to the problem of autonomous task allocation for a self-organising constellation of small satellites in Earth orbit.
Colombo, Camilla +3 more
core
IEEE Open Journal of the Communications SocietyThe rapid expansion of the Internet of Things (IoT) highlights the need for ubiquitous connectivity, especially in remote and underserved areas. As a cornerstone of current 5th Generation (5G) cellular IoT networks, Narrowband IoT (NB-IoT) supports ...
Timo Kellermann +2 more
doaj +1 more source
Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
Four-Dimensional Constellations for Dual-Polarized Satellite Communications [PDF]
, 2020 -In this paper, we investigate the performance of constellations optimized for transmissions in dual-polar mobile satellite applications. These four-dimensional constellations (inphase and quadrature per polarization) are designed for joint transmission ...
Nicolò Mazzali +3 more
core
On-Board Decentralized Observation Planning for LEO Satellite Constellations
, 2023 The multi-satellite on-board observation planning (MSOOP) is a variant of the multi-agent task allocation problem (MATAP). MSOOP is used to complete the observation task allocation in a fully cooperative mode to maximize the profits of the whole system ...
Bingyu Song +5 more
core +1 more source
Mega LEO Satellite Constellations Networking: Challenges and Key Technologies
天地一体化信息网络Owing to the advances in satellite manufacturing and rocket launch technology, the deployment of mega LEO constellations has become an important direction for the development of satellite Internet.
SUN Yaohua, FENG Xinao, PENG Mugen
doaj
Oligopoly competition between satellite constellations will reduce economic welfare from orbit use. [PDF]
Proc Natl Acad Sci U S A, 2023 Guyot J, Rao A, Rouillon S.
europepmc +1 more source
An experimental evaluation of satellite constellation emulators
CoRRSatellite emulation software is essential for research due to the lack of access to physical testbeds. To be useful, emulators must generate observations that are well-aligned with real-world ones, and they must have acceptable resource overheads for setting up and running experiments.
Victor Cionca +3 more
openaire +2 more sources