Results 21 to 30 of about 2,919 (165)
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 +3 more
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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 +4 more
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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 +6 more
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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
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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 +4 more
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MINLO: multi-scale improved NLO [PDF]
Journal of High Energy Physics, 2012 Abstract In the present work we consider the assignment of the factorization and renormalization scales in hadron collider processes with associated jet production, at next-to-leading order (NLO) in perturbation theory. We propose a simple, definite prescription to this end, including Sudakov form factors to consistently account ...
Hamilton, Keith +2 more
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Sensors, 2020 With the rapid development of information and communication technology, the wireless sensor network (WSN) has shown broad application prospects in a growing number of fields. The non-line-of-sight (NLOS) problem is the main challenge to WSN localization,
Long Cheng +3 more
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Factorisation and subtraction beyond NLO [PDF]
Journal of High Energy Physics, 2018 Abstract We provide a general method to construct local infrared subtraction counterterms for unresolved radiative contributions to differential cross sections, to any order in perturbation theory. We start from the factorised structure of virtual corrections to scattering amplitudes, where soft and collinear divergences are ...
Magnea, L. +5 more
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Sensors, 2019 In this paper, an optimization algorithm is presented based on a distance and angle probability model for indoor non-line-of-sight (NLOS) environments.
Xin Tian +3 more
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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 +4 more
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