Results 11 to 20 of about 125,527,219 (302)
Non-line-of-sight imaging [PDF]
Nature Reviews Physics, 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. Rather than imaging photons that travel along direct paths from a source to an object and back to the detector, non-line-of-sight (NLOS) imaging approaches ...
Daniele Faccio +2 more
openaire +3 more sources
Sensors, 2021 Under mixed sparse line-of-sight/non-line-of-sight (LOS/NLOS) conditions, how to quickly achieve high positioning accuracy is still a challenging task and a critical problem in the last dozen years.
Chengwen He, Yunbin Yuan, Bingfeng Tan
doaj +1 more source
Deep Non-Line-of-Sight Reconstruction [PDF]
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2020 Minor editorial update (typos, figure captions)
Grau Chopite, Javier +3 more
openaire +2 more sources
Line-of-sight and non-line-of-sight links for dispersive terahertz wireless networks
APL Photonics, 2021 Despite the rapidly growing interest in exploiting millimeter and terahertz waves for wireless data transfer, the role of reflected non-line-of-sight (NLOS) paths in wireless networking is one of the least explored questions.
Yasaman Ghasempour +4 more
doaj +1 more source
Path Loss Measurements and Model Analysis in an Indoor Corridor Environment at 28 GHz and 38 GHz
Sensors, 2022 This paper examines the large-scale path loss models for an indoor corridor environment at frequencies of 28 and 38 GHz. The measurement environment consists of an indoor corridor with both line-of-sight (LOS) and non-line of sight (NLOS) scenarios using
Tolulope T. Oladimeji +2 more
doaj +1 more source
Experimental Analysis of Spatial Modulation Systems in Mixed LOS/NLOS Scenarios
IEEE Access, 2022 Spatial modulation (SM) as a multiple-input multiple-output (MIMO) technique is a solution suitable which offers, with low system complexity and cost, improved spectral efficiency compared to single-input-single-output (SISO) systems.
Yanni Zhou +2 more
doaj +1 more source
Drones, 2022 Unmanned air vehicles (UAVs) used as aerial base stations (ABSs) can provide communication services in areas where cellular network is not functional due to a calamity.
Abdul Basit Siddiqui +4 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 +4 more
doaj +1 more source
Time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments
International Journal of Distributed Sensor Networks, 2020 A novel time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments is proposed. First, an optimization problem of target localization in the known distribution of line-of-sight and non-line-of-sight is established,
Peixin Wang +4 more
doaj +1 more source
Propagation path loss prediction modelling in enclosed environments for 5G networks: A review
Heliyon, 2022 Millimeter wave path loss modeling is essential for reliable system design and accurate link budget calculations. The motivation for this research is that channel modeling in 5G millimeter wave propagation in an indoor environment is a current research ...
Tolulope T. Oladimeji +2 more
doaj +1 more source