Results 61 to 70 of about 139,455 (200)
Dynamic Cell Division for Interference Management in Satellite Direct‐to‐Cell Systems
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Direct‐to‐cell (D2C) connectivity enables future non‐terrestrial networks to provide service directly to standard terrestrial user equipment (UE) when terrestrial networks (TN) are unavailable. In this work, the satellite system is considered as a secondary network that supplements existing TN coverage while minimizing interference to the ...
Satya Chan +3 more
wiley +1 more source
Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel +2 more
wiley +1 more source
Analytical Solution to Relative Motion Dynamics in Satellite Formation Flying Using Geostationary Orbit Sets [PDF]
فصلنامه علوم و فناوری فضایی, 2015 Satellite formation flying is one of the most recent research topics in space field owing to various operational projects. The first and the most important step in facing with this concept is studying and modeling of dynamics of the problem.
Seyed Hossein Mortazavi
doaj
Towards Multidecadal Consistent Meteosat Surface Albedo Time Series
Remote Sensing, 2010 Monitoring of land surface albedo dynamics is important for the understanding of observed climate trends. Recently developed multidecadal surface albedo data products, derived from a series of geostationary satellite data, provide the opportunity to ...
Alexander Loew, Yves Govaerts
doaj +1 more source
Geometric Characterization of LEO–GEO Inter‐Satellite Links for Bidirectional Communications
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Incorporating geosynchronous Earth orbit (GEO) and low Earth orbit (LEO) satellites can extend communication services far beyond the reach of terrestrial infrastructure. A key enabler of such architectures is the establishment of inter‐satellite links (ISLs) between LEOs and GEOs to support bidirectional communications.
Muhammad Furqan +2 more
wiley +1 more source
Data associated with "Constraining aerosol phase function using dual-view geostationary satellites"
, 2021 The dataset includes the data for figures shown in the paper. Two opposing GEOS satellites capture a dust event in the Gulf of Mexico in June 2019.
Chiu, J. Christine +9 more
core +1 more source
Routing and Downlink Resource Allocation for Multicast Traffic in LEO Satellite Constellations
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT In this work, we optimize unicast and multicast traffic delivery over non‐terrestrial networks (NTNs) to users on the ground through direct satellite downlink (DL). We consider a gateway‐free mesh architecture with low Earth orbit (LEO) satellites interconnected via inter‐satellite links (ISLs), where unicast and multicast services compete for
Federico Lozano‐Cuadra +3 more
wiley +1 more source
Non-Keplerian orbits using hybrid solar sail propulsion for Earth applications [PDF]
, 2012 Half a century of space technology development has provided a wealth of new space applications. However, many still remain to be explored. Examples include increased geostationary coverage and new opportunities to enhance polar observation.
Biggs, James +3 more
core +3 more sources
Do the public take action when a severe snow warning is issued?
Weather, EarlyView.Extreme weather events pose significant risks to the population, making timely warnings essential for preparedness. The UK Met Office’s National Severe Weather Warning Service (NSWWS) has issued impact‐based alerts for over a decade, yet evaluations of their effectiveness remain limited.
Helen Dacre, Rachel McCloy, Joi Alon
wiley +1 more source
Contemporary Accounting Research, EarlyView.ABSTRACT Whereas prior studies primarily examine how environmental shocks affect manufacturing, distribution, and supply chains, we examine a distinct and understudied channel: the effect of wildfire smoke on human capital operating from firm headquarters.
Jing Kong, Harlow Loch, Michael Shen
wiley +1 more source