Results 11 to 20 of about 3,127 (190)

Millimeter Wave Propagation Measurements and Characteristics for 5G System

Applied Sciences, 2020
In future 5G systems, the millimeter wave (mmWave) band will be used to support a large capacity for current mobile broadband. Therefore, the radio access technology (RAT) should be made available for 5G devices to help in distinct situations, for ...
Ahmed M. Al-Samman, Marwan Hadri Azmi, Y. A. Al-Gumaei, Tawfik Al-Hadhrami, Tharek Abd. Rahman, Yousef Fazea, Abdulmajid Al-Mqdashi   +6 more
doaj   +1 more source

A Succinct Method for Non-Line-of-Sight Mitigation for Ultra-Wideband Indoor Positioning System

Sensors, 2022
Ultra-wideband (UWB) is a promising indoor position technology with centimetre-level positioning accuracy in line-of-sight (LOS) situations. However, walls and other obstacles are common in an indoor environment, which can introduce non-line-of-sight ...
Ang Liu, Shiwei Lin, Jianguo Wang, Xiaoying Kong   +3 more
doaj   +1 more source

Research on UWB Indoor Positioning Algorithm under the Influence of Human Occlusion and Spatial NLOS

Remote Sensing, 2022
Ultra-wideband (UWB) time-of-flight (TOF)-based ranging information in a non-line-of-sight (NLOS) environment can display significant forward errors, which directly affect positioning performance.
Hao Zhang, Qing Wang, Chao Yan, Jiujing Xu, Bo Zhang   +4 more
doaj   +1 more source

NLO renormalization in the Hamiltonian truncation [PDF]

Physical Review D, 2017
28pp + appendices, detailed version of arXiv:1706 ...
Elias-Miro, Joan, Rychkov, Slava, Vitale, Lorenzo G.   +2 more
openaire   +3 more sources

Deep Learning-Based LOS and NLOS Identification in Wireless Body Area Networks

Sensors, 2019
In this article, the usage of deep learning (DL) in ultra-wideband (UWB) Wireless Body Area Networks (WBANs) is presented. The developed approach, using channel impulse response, allows higher efficiency in identifying the direct visibility conditions ...
Krzysztof K. Cwalina, Piotr Rajchowski, Olga Blaszkiewicz, Alicja Olejniczak, Jaroslaw Sadowski   +4 more
doaj   +1 more source

NLO production and decay of quarkonium [PDF]

Nuclear Physics B, 1998
65 pages, Latex, epsfig, 8 figures. Typos corrected and improvements made to the text.
GRECO, Mario, CACCIARI M., MANGANO M., PETRELLI A., MALTONI F.   +4 more
openaire   +4 more sources

NLOS Multipath Classification of GNSS Signal Correlation Output Using Machine Learning

Sensors, 2021
This paper proposes a method for detecting non-line-of-sight (NLOS) multipath, which causes large positioning errors in a global navigation satellite system (GNSS). We use GNSS signal correlation output, which is the most primitive GNSS signal processing
Taro Suzuki, Yoshiharu Amano
doaj   +1 more source

Statistical LOS/NLOS Channel Model for Simulations of Next Generation 3GPP Networks

Elektronika ir Elektrotechnika, 2018
Understanding of line-of-sight and non-line-of-sight (LOS/NLOS) visibility conditions is important for radio wave propagation modeling when selecting empirical path loss model.
Rimvydas Aleksiejunas, Albert Cesiul, Kestutis Svirskas   +2 more
doaj   +1 more source

Non-line-of-sight propagation in object localization: a survey

Gong-kuang zidonghua, 2020
Due to the existence of obstacles, none-line-of-sight(NLOS) propagation is common in localization scenes like mines, which causes refraction, reflection, diffraction and scattering of localization signals, leads to the increase of ranging error, and ...
HU Qingsong, ZHANG Henan, WANG Peng, YANG Wei, LI Shiyin   +4 more
doaj   +1 more source

Performance Analysis of Wireless Location and Velocity Tracking of Digital Broadcast Signals Based on Extended Kalman Filter Algorithm

Complexity, 2021
In order to improve the accuracy and reliability of wireless location in NLOS environment, a wireless location algorithm based on artificial neural network (ANN) is proposed for NLOS positioning error caused by non-line-of-sight (NLOS) propagation, such ...
Yukai Hao, Xin Qiu
doaj   +1 more source