Results 61 to 70 of about 1,721 (169)
Channel Estimation For Mimo-Ofdm Systems of Joint Angle-of-Departure (AOD) or Angle-of-Arrival (AOA)
International Journal of Innovative Technology and Exploring Engineering, 2019 Beamforming with gathering mechanical assembly displays has been considered as an engaging advancement in future remote correspondence structures. To coordinate beamforming, one has to know the angle-of-departure (AoD) or angle-of-arrival (AoA). For data disclosure, the beneficiary in like manner has to know station response.
openaire +1 more source
Recent Developments in Deep‐Ultraviolet Flat Optics
Nanophotonics, Volume 15, Issue 10, 27 May 2026.Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf +2 more
wiley +1 more source
Controlling AoA Estimation Errors in Rician Fading via Measurement Quality Classification
IEEE AccessAngle of Arrival (AoA) estimation plays a crucial role in modern positioning systems but is often affected by errors in multipath channels. Existing methods typically lack a direct mechanism to assess the quality of the estimates, while full channel ...
Pedro Lemos +3 more
doaj +1 more source
Wind Energy, Volume 29, Issue 5, May 2026.ABSTRACT An experimental study of NACA0021 airfoil equipped with vortex generators (VGs) and Gurney flaps (GFs) was conducted to assess the effects of these devices on the aerodynamic airfoil performance, the information that is necessary for studying the self‐starting characteristics of vertical axis wind turbines (VAWTs).
Marin Ivanković +4 more
wiley +1 more source
International Journal of Antennas and Propagation, 2017 This paper presents an analytic algorithm for accurate two-dimensional (2-D) angle of arrival (AOA) estimation of a single source under fixed uniform circular arrays (UCAs).
Le Zuo, Jin Pan
doaj +1 more source
Ryugu reference project: Recommendations from the measurement definition team
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
Angle of Arrival Estimation Using Cholesky Decomposition
International Journal of Antennas and Propagation, 2012 An angle of arrival (AOA) estimator is presented. Many applications require accurate AOA estimates such as wireless positioning and signal enhancement using space-processing techniques. The proposed AOA estimator depends on the Cholesky decomposition of
Saleh O. Al-Jazzar
doaj +1 more source
Natural Sciences, Volume 6, Issue 2, April 2026.The effects of ZnO, fullerene C60 and polyaniline (PANI) nanoparticles in hybrid nerve conduits are explored. The composites show enhanced electrical conductivity, permeability to physiological fluids and mechanical stability. The biocompatibility of composites is confirmed by in vivo and in vitro studies.
Liudmyla Sukhodub +7 more
wiley +1 more source
IEEE Access, 2019 Angle-of-arrival (AOA) estimation is an important factor in various wireless sensing applications, especially localization systems. This paper proposes a new type of AOA estimation sensor node, known as AOA-estimation system (AES) where the received ...
Mohd Ilman Jais +8 more
doaj +1 more source