Results 101 to 110 of about 173,342,957 (239)

Strongest Angle-of-Arrival Estimation for Hybrid Millimeter Wave Architecture with 1-Bit A/D Equipped at Transceivers. [PDF]

Sensors (Basel), 2022
Li R, Zhao L, Liu C, Bi M.
europepmc   +1 more source

Indoor Wideband Time/Angle of Arrival Multipath

, 1997
Most current indoor propagation experiments measure the time of arrival of characteristics of multipath reflections without regard to angle of arrival.
Michael Jensen, Quentin Spencer, Brian Jeffs, Propagation Results Quentin, Michael Rice   +4 more
core  

Evaluation of the angle of arrival based techniques

, 2013
NoIn this work we present the angle of arrival estimation techniques and their comparison at different values of SNR using a 5 element UCA. The techniques that have been considered include phase interferometry, Multiple Signal Classification and ...
Rodriguez, Jonathan, A. S. Hussaini, Jones, Steven M.R., Asif, R., Rodriguez, J., Usman, Muhammad, M. UsmaN, Ghazaany, T., Raed A. Abd-Alhamced, Noras, J. M., J. M. Noras, Abd-Alhamced, Raed A., Jones, S. M. R., Hussaini, Abubakar S., Asif, Rameez, R. Asif, Abd-Alhameed, Raed, Hussaini, A. S., J. Rodriguez, Noras, James M., T. Ghazaany, Ghazaany, Tahereh S., S. M. R. Jones, Usman, M.   +23 more
core   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Angle-of-Arrival Estimation Using Difference Beams in Localized Hybrid Arrays. [PDF]

Sensors (Basel), 2021
Li H, Cheng Z.
europepmc   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

A time difference of arrival/angle of arrival fusion algorithm with steepest descent algorithm for indoor non-line-of-sight locationing

International Journal of Distributed Sensor Networks, 2019
In complex indoor propagation environment, the non-line-of-sight error caused by various obstacles brings great error to node positioning. Choosing the appropriate signal transmission methods is important to improve node indoor positioning accuracy.
Chong Shen, Chengxiao Wang, Kun Zhang, Xianpeng Wang, Jing Liu   +4 more
doaj   +1 more source

3D Angle-of-Arrival Positioning Using von Mises-Fisher Distribution

, 2018
We propose modeling an angle-of-arrival (AOA) positioning measurement as a 3-dimensional von Mises-Fisher (VMF)-distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements.
Nurminen, Henri, Henri Nurminen, Robert Piche, Simo Ali-Loytty, Piche, Robert, Suomalainen, Laura, Laura Suomalainen, Ali-Löytty, Simo   +7 more
core   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Hardware Implementation and RF High-Fidelity Modeling and Simulation of Compressive Sensing Based 2D Angle-of-Arrival Measurement System for 2-18 GHz Radar Electronic Support Measures. [PDF]

Sensors (Basel), 2021
Wu C, Krishnasamy D, Elangage J.
europepmc   +1 more source