Results 41 to 50 of about 4,630 (180)
ABSTRACT Breast cancer is still a serious problem in the world arena, where its early and prompt detection is the most important factor in improving patient prognosis and survival. The use of traditional diagnostic techniques, such as imaging (e.g., mammography and ultrasound) and subsequent histopathological examination, is the mainstay, which ...
Likhon Chandra Sarkar +6 more
wiley +1 more source
Methods for Anomalous Azimuth Estimate Censoring in Small Element Antenna Arrays
There are abnormal azimuth estimates caused by multipath propagation and adjacent signal spectra overlapping in azimuth estimates of radio source created by radio monitoring complexes in broad band.
M. E. Shevchenko +5 more
doaj
Abstract Genome–phenome association (GPA) prediction can broaden the understanding of biological mechanisms underlying complex phenotypic traits (e.g., diseases and agronomic traits). Traditional deep matrix factorization (DMF)‐based GPA methods can integrate multiple data types and uncover nonlinear associations but often rely on low‐dimensional ...
Ran Duan +4 more
wiley +1 more source
This study presents wideband propagation measurements of 105 GHz multipath characteristics, encompassing a full 360$^\circ $ in a real office desktop environment.
Masaki Maeda +3 more
doaj +1 more source
Experimental Multipath-Cluster Characteristics of 28-GHz Propagation Channel
In this paper, a channel measurement campaign is introduced, which utilizes direction-scan-sounding to capture the spatial characteristics of 28-GHz wave propagation channels with 500-MHz sounding bandwidth in office environments.
Xuefeng Yin, Cen Ling, Myung-Don Kim
doaj +1 more source
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency ( > 500 ms) and inadequate coverage at high latitudes,
Raúl Parada +4 more
wiley +1 more source
Intra- and inter-cell interference investigations for broadband radio access systems above 10 GHz
Local multipoint distribution systems (LMDS) operating above 10 GHz have a large bandwidth (2--3 GHz) but a very limited range. These systems can provide coverage to a few kilometers only.
Ranjan Bose, Andreas Hayn, Rolf Jakoby
doaj +1 more source
In this paper, we propose a multipath-assisted device-free localization (DFL) system that includes magnitude and phase information (MAMPI). The DFL system employs ultra-wideband (UWB) channel impulse response (CIR) measurements, enabling the extraction ...
Marco Cimdins +2 more
doaj +1 more source
Strange Attractors in Multipath propagation: Detection and characterisation
Multipath propagation of radio waves in indoor/outdoor environments shows a highly irregular behavior as a function of time. Typical modeling of this phenomenon assumes the received signal is a stochastic process composed of the superposition of various altered replicas of the transmitted one, their amplitudes and phases being drawn from specific ...
C. Tannous, R. Davies, A. Angus
openaire +2 more sources
Metasurface‐Enabled Active‐Like Passive Radar
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source

