Results 31 to 40 of about 301,173 (181)
Cosmological Constraints from the Anisotropic Clustering Analysis using BOSS DR9
, 2013 Our observations of the Universe are fundamentally anisotropic, with data from galaxies separated transverse to the line of sight coming from the same epoch while that from galaxies separated parallel to the line of sight coming from different times ...
Linder, Eric V. +4 more
core +1 more source
Position and Orientation Estimation through Millimeter Wave MIMO in 5G Systems [PDF]
, 2017 Millimeter wave signals and large antenna arrays are considered enabling technologies for future 5G networks. While their benefits for achieving high-data rate communications are well-known, their potential advantages for accurate positioning are largely
Destino, Giuseppe +4 more
core +3 more sources
International Journal of Distributed Sensor Networks, 2020 As the key technology for Internet of things, wireless sensor networks have received more attentions in recent years. Mobile localization is one of the significant topics in wireless sensor networks.
Nan Hu +5 more
doaj +1 more source
Measurements and Models of 915 MHz LoRa Radio Propagation in an Underground Gold Mine
Sensors, 2022 Underground mining increasingly relies on wireless communications for its operations. The move to automating many underground mining processes makes an understanding of the propagation characteristics of key wireless technologies underground a topic of ...
Philip Branch
doaj +1 more source
Optimum Model for Tracking of Moving Objects
Pakistan Journal of Engineering & Technology, 2023 In wireless communication, it is a challenge to find the accurate position of moving objects. The presented work proposes the GPS receiver to measure the position and velocity of moving objects.
Muzaffar Hussain +2 more
doaj +1 more source
Empowering IoT: leveraging data sensor communication with LoRAWAN in diverse environments
Acta PolytechnicaThe Internet of Things (IoT) connects countless devices, such as sensors and actuators, necessitating an efficient long-range communication technology.
Noprianto Noprianto +4 more
doaj +1 more source
Non-line of Sight Transient Rendering
Jornada de Jóvenes Investigadores del I3A, 2022 Non-line of sight imaging reconstructs hidden geometry using time-resolved measurements of indirect diffuse reflections emitted by a laser. To help develop new applications, we simulate light transport in these occluded scenes and introduce a set of simple, yet effective subpath sampling techniques for efficiency, with an open-source implementation.
Royo, Diego +3 more
openaire +3 more sources
Optimal Constrained Wireless Emergency Network Antennae Placement [PDF]
, 2018 With increasing number of mobile devices, newly introduced smart devices, and the Internet of things (IoT) sensors, the current microwave frequency spectrum is getting rapidly congested.
Gaikwad, Swapnil Mohan
core +1 more source
CO Line Emission and Absorption from the HL Tau Disk: Where is all the dust?
, 2005 We present high-resolution infrared spectra of HL Tau, a heavily embedded young star. The spectra exhibit broad emission lines of hot CO gas as well as narrow absorption lines of cold CO gas. The column density for this cooler material (7.5+/-0.2 x 10^18
Carr J. S. +7 more
core +1 more source
Mass-Galaxy offsets in Abell 3827, 2218 and 1689: intrinsic properties or line-of-sight substructures? [PDF]
, 2014 We have made mass maps of three strong-lensing clusters, Abell 3827, Abell 2218 and Abell 1689, in order to test for mass-light offsets. The technique used is GRALE, which enables lens reconstruction with minimal assumptions, and specifically with no ...
Liesenborgs, Jori +3 more
core +1 more source