Results 111 to 120 of about 45,199 (262)

A Comparison Between Recursive Least-Squares (RLS) and Extended Recursive Least-Squares (E-RLS) for Tracking Multiple Fast Time Variation Rayleigh Fading Channel

open access: yesAl-Khawarizmi Engineering Journal, 2017
In order to select the optimal tracking of fast time variation of multipath fast time variation Rayleigh fading channel, this paper focuses on the recursive least-squares (RLS) and Extended recursive least-squares (E-RLS) algorithms and reaches the ...
Ali Salah Mahdi
doaj  

Crustal Magma Storage and Plumbing System Beneath the Tianchi and Wangtian'e Volcanoes, Changbaishan Intraplate Volcanic Field, China and North Korea

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene activity.
Xiaomeng Niu   +9 more
wiley   +1 more source

Fading characteristics of panchromatic radar backscatter from selected agricultural targets [PDF]

open access: yes
An experiment was performed to empirically determine the fading characteristics of backscattered radar signals from four agricultural targets at 9 GHz. After a short review of the statistics of Rayleigh fading backscatter, the data processing method and ...
Bush, T. F., Ulaby, F. T.
core   +1 more source

Analysis of Thermal Dynamics of Floating Photovoltaic Systems

open access: yesSolar RRL, Volume 10, Issue 6, 29 March 2026.
A scalable methodology couples computational fluid dynamics‐derived wind decay functions with a dynamic heat transfer model to capture spatial temperature variations across large floating photovoltaic systems and is validated with data from the Netherlands floating photovoltaic systems (FPV) site.
A. Kaul   +3 more
wiley   +1 more source

Full-Rate, Full-Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels

open access: yes, 2005
A full-rate, full-diversity Adaptive Space Time Block Coding (ASTBC) scheme based on Singular Value Decomposition (SVD) is proposed for transmission over Rayleigh fading channels.
Hanzo, L., Ng, S.X., Yeap, B.L.
core  

Steady Collapse of Uranus' Exosphere After 1998 to the Present Decade

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Uranus' thermospheric temperature decreased from ∼800K in 1986 to ∼450K in 2022 as determined from observations of H3+ and H2 infrared emissions. Spitzer 2007 lower atmosphere observations do not emulate this cooling trend. Here we show that the atomic H Lyman ⍺ emission from the disk of Uranus observed by HST from 2011 to 2022 are not ...
D. Bhattacharyya   +6 more
wiley   +1 more source

Monitoring Near‐Surface Changes Using Anthropogenic Seismic Vibrations

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The abundance of anthropogenic seismic noise provides a valuable resource for monitoring dynamic subsurface property changes. We utilize railway and wind turbine‐induced vibrations recorded by a geophone array to estimate surface wave attenuation and velocity in the underlying glacial deposits of Illinois.
Sayan Mukherjee   +3 more
wiley   +1 more source

Large Intelligent Surfaces Communicating Through Massive MIMO Rayleigh Fading Channels. [PDF]

open access: yesSensors (Basel), 2020
Coelho Ferreira R   +4 more
europepmc   +1 more source

Effects of Equilibrium and Non‐Equilibrium Adsorption States on the Photoreduction and Isotope Fractionation of Hg(II) in Urban Aerosols

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Mercury (Hg) photoreduction on urban aerosols plays a critical role in atmospheric Hg cycling, yet the effects of the adsorption state on its kinetics and isotopic fractionation remain poorly constrained. This study investigates Hg(II) photoreduction under equilibrium (EAC) and non‐equilibrium adsorption conditions (NAC) using a flow‐through ...
Qiang Huang   +4 more
wiley   +1 more source

Iterative Decoding of Serial Concatenated Convolutionally Encoded Signals over Frequency Selective Fading Channels

open access: yesJournal of Engineering and Sustainable Development, 2007
Serial concatenated convolutional coding with iterative decoding is examined for data transmission employing BFSK (binary frequency shift keying) modulation and non-coherent detection receiver.
Maha George Zia
doaj  

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