Results 11 to 20 of about 11,066 (147)

An Indoor Mobile Localization Strategy for Robot in NLOS Environment

open access: yesInternational Journal of Distributed Sensor Networks, 2013
This paper deals with the problem of localization of mobile robot in indoor environment with mixed line-of-sight/nonline-of-sight (LOS/NLOS) conditions.
Yan Wang, Yuanwei Jing, Zixi Jia
doaj   +2 more sources

CRLBs for WSNs localization in NLOS environment [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
Determination of Cramer-Rao lower bound (CRLB) as an optimality criterion for the problem of localization in wireless sensor networks (WSNs) is a very important issue. Currently, CRLBs have been derived for line-of-sight (LOS) situation in WSNs. However,
Wang Peng, Huang Jiyan, Wan Qun
doaj   +3 more sources

Measurement analysis of NLOS indoor MIMO channels [PDF]

open access: yes, 2001
In this paper, we present results from measurements conducted by the University of Bristol. We study the channel characteristics of Multiple Input-Multiple-Output (MIMO) indoor channel at 5.2 GHz.
Yu, K   +5 more
core   +12 more sources

Statistical LOS/NLOS Classification for UWB Channels [PDF]

open access: yes, 2023
Ultrawideband (UWB) technology has attracted a lot of attention for indoor and outdoor positioning systems due to its high accuracy and robustness in non-line-of-sight (NLOS) environments.
Khan, Irfan   +3 more
core   +1 more source

Joint Particle Filter and UKF Position Tracking in Severe Non-Line-Of-Sight Situations [PDF]

open access: yes, 2009
The performance of localization techniques in a wireless communication system is severely impaired by biases induced in the range and angle measures because of the non-line-of-sight (NLOS) situation, caused by obstacles in the transmitted signal path ...
Vidal, Josep   +4 more
core   +1 more source

Polarization Diversity-enabled LOS/NLOS Identification via Carrier Phase Measurements [PDF]

open access: yes, 2023
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 ...
López, Onel L. A.   +2 more
core   +1 more source

Modeling of wide-band MIMO radio channels based on NLoS indoor measurements [PDF]

open access: yes, 2004
In this paper, we first verify a previously proposed Kronecker-structure-based narrow-band model for nonline-of-sight (NLoS) indoor multiple-input-multiple-output (MIMO) radio channels based on 5.2-GHz indoor MIMO channel measurements.
OTTERSTEN, Björn   +24 more
core   +1 more source

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

open access: yesElektronika 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   +2 more
doaj   +1 more source

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

open access: yesGong-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
doaj   +1 more source

Research on High Precision Positioning Method for Pedestrians in Indoor Complex Environments Based on UWB/IMU

open access: yesRemote Sensing, 2023
Location information is the core data in IoT applications, which is the essential foundation for scene interpretation and interconnection of everything, and thus high-precision positioning is becoming an immediate need.
Hao Zhang   +4 more
doaj   +1 more source

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