Results 21 to 30 of about 2,537,645 (154)
Joint Particle Filter and UKF Position Tracking in Severe Non-Line-Of-Sight Situations [PDF]
, 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
Fuzzy Comprehensive Evaluation based NLOS Identification for UWB Indoor Positioning [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesUltra-wideband (UWB) positioning technology stands out from many indoor positioning technologies with its advantages of high precision. However, non-line-of-sight (NLOS) propagate leads to heavy range error and reduces position accuracy, this paper ...
J. Li +5 more
doaj +1 more source
Modeling of wide-band MIMO radio channels based on NLoS indoor measurements [PDF]
, 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
A UWB NLOS identification method under pedestrian occlusion
物联网学报, 2023 Ultrawideband (UWB) is a hot technology for indoor positioning with large bandwidth, strong anti-interference ability, and high multipath resolution capacity.However, due to the complex indoor environment, UWB signal propagation will inevitably be ...
Tong WU +5 more
doaj +2 more sources
NLOS identification and mitigation for mobile tracking [PDF]
, 2013 A non-line-of-sight (NLOS) mitigation approach is presented for network-based mobile tracking. A distance smoothing method is proposed, which uses online line-of-sight (LOS) and NLOS identification.
Dutkiewicz, E, Yu, K
core +1 more source
Polarization Diversity-enabled LOS/NLOS Identification via Carrier Phase Measurements [PDF]
, 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 +3 more sources
Statistical LOS/NLOS Classification for UWB Channels [PDF]
, 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
Range-Based Localization for UWB Sensor Networks in Realistic Environments
EURASIP Journal on Wireless Communications and Networking, 2010 The Non-Line of Sight (NLOS) problem is the major drawback for accurate localization within Ultra-Wideband (UWB) sensor networks. In this article, a comprehensive overview of the existing methods for localization in distributed UWB sensor networks under ...
Reiner S. Thomä +3 more
doaj +2 more sources
Remote Sensing, 2023 Device-free wireless localization based on Wi-Fi channel state information (CSI) is an emerging technique that could estimate users’ indoor locations without invading their privacy or requiring special equipment.
Xingyu Zheng +9 more
doaj +1 more source
Indoor Human Action Recognition Based on Dual Kinect V2 and Improved Ensemble Learning Method
Sensors, 2023 Indoor human action recognition, essential across various applications, faces significant challenges such as orientation constraints and identification limitations, particularly in systems reliant on non-contact devices.
Ruixiang Kan +6 more
doaj +1 more source