Results 11 to 20 of about 2,537,645 (154)

GNSS Urban Positioning with Vision-Aided NLOS Identification

Remote Sensing, 2022
The global navigation satellite system (GNSS) has played an important role in a broad range of consumer and industrial applications. In particular, cities have become GNSS major application scenarios; however, GNSS signals suffer from blocking ...
Hexiong Yao, Zhiqiang Dai, Weixiang Chen, Ting Xie, Xiangwei Zhu   +4 more
doaj   +2 more sources

An Indoor Mobile Localization Strategy for Robot in NLOS Environment

International 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

An Advanced Artificial Fish School Algorithm to Update Decision Tree for NLOS Acoustic Localization Signal Identification with the Dual-Receiving Method

Applied Sciences, 2023
For indoor sensor systems, it is essential to implement an extra supporting area notification part. To inform the real-time coordinates, the time difference of arrival (TDOA) algorithm can be introduced.
Ruixiang Kan, Mei Wang, Xin Liu, Xiaojuan Liu, Hongbing Qiu   +4 more
doaj   +2 more sources

Ultra-Wideband Ranging Error Mitigation with Novel Channel Impulse Response Feature Parameters and Two-Step Non-Line-of-Sight Identification [PDF]

Sensors
The effective identification and mitigation of non-line-of-sight (NLOS) ranging errors are essential for achieving high-precision positioning and navigation with ultra-wideband (UWB) technology in harsh indoor environments.
Hongchao Yang, Yunjia Wang, Shenglei Xu, Jingxue Bi, Haonan Jia, Cheekiat Seow   +5 more
doaj   +2 more sources

LOS and NLOS identification in real indoor environment using deep learning approach

Digital Communications and Networks
Visibility conditions between antennas, i.e. Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) can be crucial in the context of indoor localization, for which detecting the NLOS condition and further correcting constant position estimation errors or ...
Alicja Olejniczak, Olga Blaszkiewicz, Krzysztof K. Cwalina, Piotr Rajchowski, Jaroslaw Sadowski   +4 more
doaj   +2 more sources

Acoustic NLOS Identification Using Acoustic Channel Characteristics for Smartphone Indoor Localization. [PDF]

Sensors (Basel), 2017
As the demand for indoor localization is increasing to support our daily life in large and complex indoor environments, sound-based localization technologies have attracted researchers’ attention because they have the advantages of being fully compatible
Zhang L, Huang D, Wang X, Schindelhauer C, Wang Z.   +4 more
europepmc   +2 more sources

A reliable NLOS error identification method based on LightGBM driven by multiple features of GNSS signals

Satellite Navigation
In complicated urban environments, Global Navigation Satellite System (GNSS) signals are frequently affected by building reflection or refraction, resulting in Non-Line-of-Sight (NLOS) errors.
Xiaohong Zhang, Xinyu Wang, Wanke Liu, Xianlu Tao, Yupeng Gu, Hailu Jia, Chuanming Zhang   +6 more
doaj   +2 more sources

Research on None-Line-of-Sight/Line-of-Sight Identification Method Based on Convolutional Neural Network-Channel Attention Module

Sensors, 2023
None-Line-of-Sight (NLOS) propagation of Ultra-Wideband (UWB) signals leads to a decrease in the reliability of positioning accuracy. Therefore, it is essential to identify the channel environment prior to localization to preserve the high-accuracy Line ...
Jingjing Zhang, Qingwu Yi, Lu Huang, Zihan Yang, Jianqiang Cheng, Heng Zhang   +5 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

Identification of NLOS Based on Soft Decision Method

, 2023
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.
Rashdan, Ibrahim, Di, Chenqi, Jiajie Qin, Xie, Jingli, Xinyi Liu, Qi, Jiajie, Chenqi Di, wang, wei, Jingli Xie, Wei Wang, Ibrahim Rashdan, Liu, Xinyi   +11 more
core   +1 more source