Results 111 to 120 of about 28,552 (197)
CRLBs for WSNs localization in NLOS environment
EURASIP 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
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThis article reports on the localization and imaging of perfect electric conductive (PEC) objects in a non-line-of-sight (NLOS) environment using the multipath exploitation-based inverse scattering method.
Hiroshi Suenobu +5 more
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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
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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
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NLO Exclusive Evolution Kernels
, 2000 3 pages, needs sprocl.sty, Talk given at the 8th International Workshop on Deep Inelastic scattering and QCD, Liverpool, April 25-30 ...
Belitsky, A. V., Freund, A., Müller, D.
openaire +2 more sources
NLOS Signal Detection Based on Single Orthogonal Dual-Polarized GNSS Antenna
International Journal of Antennas and Propagation, 2017 Nowadays users have a high demand for the accuracy of position and velocity, but errors caused by non-line-of-sight (NLOS) signals cannot be removed effectively. Since the GNSS signal is right-hand circular polarized (RHCP), the axial ratio of the strong
Ke Zhang +4 more
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Robust Positioning in the Presence of Multipath and NLOS GNSS Signals [PDF]
GNSS signals can be blocked and reflected by nearby objects, such as buildings, walls, and vehicles. They can also be reflected by the ground and by water.
Ashman, Benjamin W. +2 more
core +1 more source
Modeling the distance error and performance analysis in IR-UWB positioning system
Tongxin xuebao, 2011 The multipath and NLOS distance errors in indoor positioning due to the propagation characteristics of IR-UWB were analyzed,based on the coherent TOA ranging algorithm.Utilized the statistical information of IEEE 802.15.4a channel model,the multipath ...
MENG Jing1 +4 more
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Precise Reconstruction Method for Hidden Targets Based on Non-line-of-sight Radar 3D Imaging
Leida xuebaoNon-Line-Of-Sight (NLOS) 3D imaging radar is an emerging technology that utilizes multipath scattering echoes to detect hidden targets. However, this technology faces challenges such as the separation of multipath echoes, reduction of aperture occlusion,
Xiang CAI +6 more
doaj +1 more source
Applied SciencesAs large-scale low Earth orbit (LEO) constellations continue to expand, the potential of their signal strength for positioning applications should be fully leveraged.
Junqi Guo, Yang Wang
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