Results 21 to 30 of about 24,730 (232)
Sensors, 2018 The problem of target localization in WSN (wireless sensor network) has received much attention in recent years. However, the performance of traditional localization algorithms will drastically degrade in the non-line of sight (NLOS) environment ...
Jingyu Hua +4 more
doaj +1 more source
Average power prediction in microcells [PDF]
, 1994 A propagation model to estimate the average received power in an urban microcell environment has been developed. This model can be used both in line of sight (LOS) and non line of sight (NLOS) conditions in any regular or irregular microcell structure ...
Fernández, M, Ruiz Boqué, Sílvia
core +1 more source
Scatterer information based indoor NLOS multiple base station cooperative localization algorithm
Tongxin xuebao, 2021 In indoor environments, the localization accuracy of existing line of sight (LOS) solutions will deteriorate severely in non-line-of-sight (NLOS) environment.In order to solve this problem, an scatterer information based indoor NLOS multiple base ...
Liangbo XIE +6 more
doaj +2 more sources
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 +4 more
doaj +1 more source
HMM-Based tracking of moving terminals in dense multipath indoor environments [PDF]
, 2005 This paper deals with the problem of radio localization of moving terminals (MTs) for indoor applications with mixed line-of sight/non-line-of-sight (LOS/NLOS) conditions.
C. Morelli +3 more
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Time‐varying non‐line‐of‐sight (NLOS) satellite navigation channel modelling and simulation using multiple point‐scatterers [PDF]
IET Radar, Sonar & Navigation, 2022 Abstract Recently, there has been an increasing interest in modelling and simulation of time‐varying (TV) non‐line‐of‐sight (NLOS) channels for global navigation satellite systems (GNSS) as an assisted means of resolving the GNSS urban canyon problem.
Shun Zhou +3 more
openaire +2 more sources
Research Progress of Non-line-of-sight Underwater Wireless Optical Communication Technology
Guangtongxin yanjiu, 2023 Non-Line-of-Sight (NLOS) Underwater Wireless Optical Communication (UWOC) is mainly realized through the air-seawater interface reflection or the scattering of light by particles in seawater.
KONG Mei-wei +5 more
doaj
Accurate Empirical Path Loss Models with Route Classification for mmWave Communications
International Journal of Antennas and Propagation, 2022 This paper presents accurate empirical path loss models with route classification for the high band frequency of 5 G wireless. Propagation path routes are mainly classified into line of sight (LOS) and non-line-of-sight (NLOS).
Supachai Phaiboon, Pisit Phokharatkul
doaj +1 more source
Target tracking with line-of-sight identification in sensor networks under unknown measurement noises [PDF]
, 2009 —Tracking a target is a fundamental and crucial problem in wireless sensor networks. It is well known that non-line-of-sight (NLOS) propagation will significantly degrade the tracking accuracy if its effects are ignored.
H. C. So, H. Q. Liu
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, 2020 Emerging single-photon-sensitive sensors combined with advanced inverse methods to process picosecond-accurate time-stamped photon counts have given rise to unprecedented imaging capabilities.
Faccio, D., Velten, A., Wetzstein, G.
core +1 more source