Results 21 to 30 of about 301,173 (181)

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

Reliability Analysis of Centralized Radio Access Networks in Non-Line-of-Sight and Line-of-Sight Scenarios

IEEE Access, 2019
The fifth generation (5G) wireless network technology is set to be standardized by 2020, where the main goals are to improve capacity, reliability, and energy efficiency while reducing latency and massively increasing connection density.
Daniel Peethala, Thomas Kaiser, A. J. Han Vinck   +2 more
doaj   +1 more source

Fast Back-Projection for Non-Line of Sight Reconstruction [PDF]

, 2017
Recent works have demonstrated non-line of sight (NLOS) reconstruction by using the time-resolved signal frommultiply scattered light. These works combine ultrafast imaging systems with computation, which back-projects the recorded space-time signal to ...
Arellano, Victor, Gutierrez, Diego, Jarabo, Adrian   +2 more
core   +3 more sources

A far-UV survey of three hot, metal-polluted white dwarf stars: WD0455-282, WD0621-376, and WD2211-495 [PDF]

, 2019
Using newly obtained high-resolution data ($R\sim{1\times{10}^{5}}$) from the \textit{Hubble Space Telescope}, and archival UV data from the \textit{Far Ultraviolet Spectroscopic Explorer} we have conducted a detailed UV survey of the three hot, metal ...
Ayres, T., Bainbridge, M., Barrow, J. D., Barstow, M. A., Holberg, J. B., Hu, J., Lee, C. C., Preval, S. P., Reindl, N., Webb, J. K.   +9 more
core   +2 more sources

ANALISIS DEFORMASI PERMUKAAN MENGGUNAKAN METODE DInSAR (Differential Interferometry Synthetic Aperture Radar) PADA STUDI KASUS GEMPABUMI LOMBOK PERIODE AGUSTUS 2018

JGE, 2020
Lombok is located on the boundary of active tectonic plates, this is what caused the Lombok Earthquake on August, 2018. DInSAR is a remote sensing technology that utilizes radar satellites to measure the amount of deformation on the surface of the ground
Muhammad Fikri Azhari, Karyanto Karyanto, Syamsurijal Rasimeng, Bagus Sapto Mulyanto   +3 more
doaj   +1 more source

Analysis of Line-of-Sight Angle Characteristics for Intercepting a Non-Maneuvering Target With Impact Angle Constraints

IEEE Access, 2023
With the widespread informationization in modern warfare, higher requirements are required for monitoring the high-value target’s movement state and the corresponding attack conditions.
Xin Sun, Hui Wang, Kaiyang Guo, Yuru Bin, Heting Wang, Keqing Guo   +5 more
doaj   +1 more source

Projection, Spatial Correlations, and Anisotropies in a Large and Complete Sample of Abell Clusters [PDF]

, 1999
An analysis of R >= 1 Abell clusters is presented for samples containing recent redshifts from the MX Northern Abell Cluster Survey. The newly obtained redshifts from the MX Survey as well as those from the ESO Nearby Abell Cluster Survey (ENACS) provide
Christopher J. Miller, Croft R. A. C., Dalton G. B., David J. Batuski, Efstathiou G., Jaaniste J., John M. Hill, Katgert P., Kurt A. Slinglend, Ling E. N., Lucey J. R., Lumsden S. L., Maddox S. J., Maddox S. J., Mazure A., Nichol R. C., Nichol R. C., Peacock J. A., Schombert J. M., Schuch N., Schuch N., Sutherland W., Vilenkin A., Zeldovich Ya.B.   +23 more
core   +2 more sources

Lines of sight [PDF]

Social Identities, 2018
This special issue of Social Identities originated in a workshop, held in Sydney in 2016, as part of the research project, Old Atrocities, New Media.
openaire   +1 more source

Volatile-Rich Circumstellar Gas in the Unusual 49 Ceti Debris Disk

, 2014
We present Hubble Space Telescope STIS far-UV spectra of the edge-on disk around 49 Ceti, one of the very few debris disks showing sub-mm CO emission.
Grady, Carol A., Kamp, Inga, Roberge, Aki, Weinberger, Alycia J., Welsh, Barry Y.   +4 more
core   +1 more source

Inertial measurement unit–aided dual-frequency radio frequency identification localization in line-of-sight and non-line-of-sight hybrid environment

International Journal of Distributed Sensor Networks, 2018
The mitigation of non-line-of-sight propagation conditions is one of main challenges in wireless signal–based indoor localization. When radio frequency identification localization technology is applied in applications, the received signal strength ...
Jie Wu, Minghua Zhu, Bo Xiao, Wei He
doaj   +1 more source