Results 101 to 110 of about 44,019 (240)

Research of application of cooperative communication to underground coal mine

open access: yesGong-kuang zidonghua, 2015
In view of complex electromagnetic wave propagation environment and outstanding multipath effects in coal mine, major anti-multipath methods of mine wireless communication were analyzed.
WANG Tingting, XU Zhao, ZHANG Xiaoguang
doaj   +1 more source

Multipath Ghosts in Through‐the‐Wall Radar Imaging: Challenges and Solutions

open access: yesETRI Journal, 2018
In through‐the‐wall radar imaging (TWRI), the presence of front and side walls causes multipath propagation, which creates fake targets called multipath ghosts.
Abdi T. Abdalla   +2 more
doaj   +1 more source

USE OF THE REDUNDANT BISPEСTRUM-ORGANIZED CODE IN NONSTATIONARY WIRELESS CHANNEL CONTAMINATED BY STRONG FADING

open access: yesРадіоелектронні і комп'ютерні системи, 2019
One of the main problems in modern wireless telecommunication systems and networks is the transmission and reception of signals in a multipath environment.
Виктория Владимировна Науменко   +3 more
doaj   +1 more source

Mitigation of Through-Wall Distortions of Frontal Radar Images using Denoising Autoencoders

open access: yes, 2019
Radar images of humans and other concealed objects are considerably distorted by attenuation, refraction and multipath clutter in indoor through-wall environments.
Ram, Shobha Sundar, Vishwakarma, Shelly
core  

Fade Depth and Outage Probability Due to Multipath Propagation in Nigeria [PDF]

open access: diamond, 2019
M.O. Olla   +3 more
openalex   +1 more source

Tropospheric Propagation Effects Extracted From ADS‐B Messages

open access: yesEngineering Reports
Tropospheric propagation has long been recognized as a challenge in satellite communication and GNSS applications, particularly at low elevation angles where multipath, diffraction, and scintillation effects are more pronounced.
Alina‐Mihaela Badescu
doaj   +1 more source

Indoor Propagation of Electromagnetic Waves with Orbital Angular Momentum at 5.8 GHz

open access: yesInternational Journal of Antennas and Propagation, 2018
Propagation of electromagnetic waves with orbital angular momentum (OAM) is investigated in indoor environments. The OAM modes generated by circular patch array antennas are used.
Boseok Jeong, Hayeon Kim, Haengseon Lee
doaj   +1 more source

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