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   Articles with "los nlos" as a keyword



Rotating GNSS Antennas: Simultaneous LOS and NLOS Multipath Mitigation

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recommendations! Published in 2020 at "GPS Solutions"

DOI: 10.1007/s10291-020-01006-w

Abstract: Urban environments present significant challenges to global navigation satellite system (GNSS) positioning. GNSS signals are often obstructed by buildings and other obstacles, leading to reflection and diffraction, which cause major line-of-sight (LOS) and non-line-of-sight (NLOS)… read more here.

Keywords: rotating gnss; multipath; multipath mitigation; los nlos ... See more keywords

LOS/NLOS channel identification for improved localization in wireless ultra-wideband networks

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recommendations! Published in 2019 at "Telecommunication Systems"

DOI: 10.1007/s11235-019-00572-w

Abstract: The paper presents techniques for line-of-sight (LOS) and non-line-of-sight (NLOS) link identification in ultra-wideband wireless networks for the purpose of improving mobile positioning reliability in indoor and outdoor environments. Statistical hypothesis testing is applied by… read more here.

Keywords: los nlos; ultra wideband; identification; wireless ... See more keywords

Enhancing GNSS Localization in Urban Canyons With a Hybrid CNN-Autoencoder Approach to LOS/NLOS Classification

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recommendations! Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3611517

Abstract: Non-Line-of-Sight (NLOS) reception is acknowledged as a primary source of positioning error in Global Navigation Satellite System (GNSS) applications, particularly within dense urban settings. When the direct satellite path is obstructed by buildings and other… read more here.

Keywords: los nlos; classification; navigation; cnn autoencoder ... See more keywords

Improving the Positioning Accuracy of UWB System for Complicated Underground NLOS Environments

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recommendations! Published in 2022 at "IEEE Systems Journal"

DOI: 10.1109/jsyst.2021.3083103

Abstract: The achievement of accurate and reliable localization is invariably a predominant bottleneck to the realization of shearer automation. Unfortunately, the positioning accuracy may significantly degrade and the yield may be unsatisfactory due to the existence… read more here.

Keywords: improving positioning; los nlos; accuracy; positioning accuracy ... See more keywords

Identification of NLOS Based on Soft Decision Method

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recommendations! Published in 2023 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2023.3240846

Abstract: The radio channel modeling and location system are the focus of many research fields. However, their performance is largely limited by line-of-sight (LOS) and non-line-of-sight (NLOS) conditions. Currently, the most popular LOS/NLOS identification algorithm is… read more here.

Keywords: los nlos; identification nlos; decision; soft decision ... See more keywords

Polarization Diversity-Enabled LOS/NLOS Identification via Carrier Phase Measurements

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recommendations! Published in 2022 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2023.3236381

Abstract: The provision of accurate localization is an increasingly important feature of wireless networks. To this end, a reliable distinction between line-of-sight (LOS) and non-LOS (NLOS) radio links is necessary to avoid degenerative localization estimation biases.… read more here.

Keywords: carrier; carrier phase; los nlos; polarization diversity ... See more keywords

A Novel UWB/IMU/Odometer-Based Robot Localization System in LOS/NLOS Mixed Environments

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recommendations! Published in 2024 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2024.3373086

Abstract: The accuracy of existing ultra-wideband (UWB) range-based indoor localization methods is generally degraded due to the non-line-of-sight (NLOS) situations where a serve bias in UWB range measurements is unavoidable. In this article, we first propose… read more here.

Keywords: los nlos; localization system; imu odometer; localization ... See more keywords

Robust Target Tracking in Mixed LOS/NLOS Environments Using a Probabilistic Multihypothesis Tracker

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recommendations! Published in 2025 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2025.3551423

Abstract: Tracking algorithms generally perform well in line-of-sight (LOS) environments but face significant challenges in non-LOS (NLOS) scenarios due to multipath effects that degrade tracking accuracy. To address these challenges, we propose a robust tracking algorithm… read more here.

Keywords: los nlos; probabilistic multihypothesis; nlos environments; multihypothesis tracker ... See more keywords

TOA/RSS-Based Source Localization Using Probabilistic Model in Mixed LOS/NLOS Environments

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recommendations! Published in 2025 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2024.3495823

Abstract: When it comes to localization in urban or indoor environments, non-line of sight (NLOS) propagations and the associated multipath effects cannot be avoided, a phenomenon which significantly degrades the localization performance. To remedy the mentioned… read more here.

Keywords: los nlos; problem; mixed los; toa rss ... See more keywords

Machine Learning-Enabled LOS/NLOS Identification for MIMO Systems in Dynamic Environments

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recommendations! Published in 2020 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2020.2967726

Abstract: Discriminating between line-of-sight (LOS) and non-line-of-sight (NLOS) conditions, or LOS identification, is important for a variety of purposes in wireless systems, including localization and channel modeling. LOS identification is especially challenging in vehicle-to-vehicle (V2V) networks… read more here.

Keywords: los nlos; machine; learning enabled; identification ... See more keywords

Derivation of K-Factor Detection Statistics to Discriminate Between LOS and NLOS Scenarios

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recommendations! Published in 2022 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2021.3114614

Abstract: The Rician ${K}$ -factor has been extensively used to characterize indoor and outdoor wireless propagation channels based on experimental and analytical models. In this paper, the $K$ -factor statistics are derived analytically and experimentally validated… read more here.

Keywords: los nlos; tex math; factor; inline formula ... See more keywords