Non-Line-of-Sight Identification Based on Unsupervised Machine Learning in Ultra Wideband Systems
IEEE Access, 2019 Identification of line-of-sight (LOS) and non-line-of-sight (NLOS) propagation conditions is very useful in ultra wideband localization systems. In the identification, supervised machine learning is often used, but it requires exorbitant efforts to ...
Jiancun Fan, Ahsan Saleem Awan
doaj +1 more source
A lightweight CIR-based CNN with MLP for NLOS/LOS identification in a UWB positioning system [PDF]
, 2023 Implementing line-of-sight (LOS) and none-line-of-sight (NLOS) identification in ultra-wideband (UWB) systems is crucial. Convolutional neural network (CNN) based identification methods can extract higher-level features automatically, but they are based ...
Harun Siljak +9 more
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An Introduction to NLOS Identification and Localization
, 2011 This chapter reviews many non-line-of-sight (NLOS) identification and localization techniques. NLOS identification techniques can be categorized into cooperative and noncooperative.
Zhonghai Wang +5 more
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RSS Localization Algorithm Based on Nonline of Sight Identification for Wireless Sensor Network
International Journal of Distributed Sensor Networks, 2014 Localization is a key issue for wireless sensor network. The traditional localization methods achieve high location accuracy using received signal strength (RSS) in line of sight (LOS) environment.
Yan Wang +4 more
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A Deep Learning Method for NLOS Error Mitigation in Coastal Scenes
Journal of Marine Science and Engineering, 2022 With the widespread use of automatic identification systems (AISs), some ships use deceptive information or intentionally close their AISs to conceal their illegal activities or evade the supervision of maritime departments.
Chao Sun +5 more
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A Triple-Filter NLOS Localization Algorithm Based on Fuzzy C-means for Wireless Sensor Networks
Sensors, 2019 With the rapid development of communication technology in recent years, Wireless Sensor Network (WSN) has become a promising research project. WSN is widely applied in a number of fields such as military, environmental monitoring, space exploration and ...
Long Cheng +5 more
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Measurement and Statistical Analysis of Distinguishable Multipaths in Underground Tunnels
International Journal of Antennas and Propagation, 2020 Compared with the line-of-sight (LOS) condition, the multipath effect is more serious in the non-line-of-sight (NLOS) condition. Therefore, the LOS and NLOS identification is necessary for the multipath analysis of signal propagation.
Junchang Sun +4 more
doaj +1 more source
An Efficient Positioning Algorithm Based on UWB and IMU Fusion in Electric Power Operation Scenes
Zhongguo dianli, 2021 In complex environments such as electric power operation scenes, the performance of ultra wideband (UWB) positioning is seriously degraded due to non line of sight (NLOS) scenarios.
Kangyong YIN +5 more
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Omnidirectional mobile NLOS identification and localization via multiple cooperative nodes
, 2012 This paper presents an Omnidirectional mobile target-node (TN) localization technique in nonline-of-sight (NLOS) scenarios. Here, a TN cooperates with base-nodes (BNs) with antenna-arrays to allow them to find its position via time-of-arrival (TOA) and ...
Seyed A. Zekavat +3 more
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Advanced Science, EarlyView.The role of TNFα in the process of renal allograft interstitial fibrosis is complex and multifaceted. As it can promote renal allograft interstitial fibrosis by inducing mitochondrial dysfunction and EndMT, and also mediating compensatory mitophagy through the NEDD4–HIF‐1α–BNIP3 pathway, which clears damaged mitochondria and inhibits EndMT, thereby ...
Dengyuan Feng +15 more
wiley +1 more source