Results 41 to 50 of about 507,465 (200)
An Alternative Approach for Angle of Arrival Estimation [PDF]
Engineering and Technology Journal, 2015 The Multiple Signal Classification (MUSIC) algorithm is the most popular algorithm to estimate the Angle of Arrival (AOA) of the received signals. This algorithm is based on the calculation of thermal noise Eigen values and their corresponding Eigen ...
Bassim Sayed Mohammed
doaj +1 more source
Sensors, 2021 In this paper, a simple printed cross-dipole (PCD) antenna to achieve a right-hand circular polarization (RHCP) at the L/S-band for direction finding (DF) systems is presented.
Kyei Anim +5 more
doaj +1 more source
Detecting Galaxy-Filament Alignments in the Sloan Digital Sky Survey III
, 2019 Previous studies have shown the filamentary structures in the cosmic web influence the alignments of nearby galaxies. We study this effect in the LOWZ sample of the Sloan Digital Sky Survey using the "Cosmic Web Reconstruction" filament catalogue.
Blazek, Jonathan +6 more
core +1 more source
Lattice fence and hedge barriers around an apiary increase honey bee flight height and decrease stings to people nearby [PDF]
, 2014 Urban beekeeping is becoming more popular in the UK. One of the challenges faced by urban beekeepers is finding a suitable apiary location. Honey bees are often perceived as a nuisance, mainly due to their stinging behaviour. Here, we experimentally test
ALTON K +6 more
core +1 more source
A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding [PDF]
IEEE Antennas and Wireless Propagation LettersA multimode multiport antenna, consisting of a single conducting structure, is proposed for use with the airborne collision avoidance system. Its cupola-shaped surface is selected from a set of aerodynamically suitable and symmetric structures.
L. Grundmann +3 more
semanticscholar +1 more source
Method and system for robust symmetrical number system photonic direction finding [PDF]
, 2017 PatentA four-element wideband photonic DF system with robust symmetrical number system preprocessing utilizes dual electrode Mach-Zehnder modulators (DE-MZMs) to conduct phase detection for direct wideband direction finding (DF) of RF signals, such as ...
Calusdian, James +2 more
core
Intersections of moving fractal sets
, 2013 Intersection of a random fractal or self-affine set with a linear manifold or another fractal set is studied, assuming that one of the sets is in a translational motion with respect to the other.
Kalda, Jaan, Mandre, Indrek
core +1 more source
Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023 Direction-finding (DF), or radio location, is a fundamental and essential technique for numerous fields, including mobile communications, satellite communications, radars, and radio astronomy. These days, the Internet of Things (IoT) has been extensively
Jo Tamura, Hiroyuki Arai
semanticscholar +1 more source
Results in EngineeringAn interferometric antenna system for Wi-Fi direction finding (DF) using only two directive tilted antennas, is proposed in this work. Typically, more than two receiver chains are needed to obtain high angular sensitivity, with a distance between ...
M. Hutar +4 more
doaj +1 more source
Low Cost Direction Finding with the Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna [PDF]
, 2006 Faculty of Engineering and the Built Environment; School of Electrical and Information System; MSC DissertationIn this paper, the Electronically Steerable Parasitic Array Radiator (ESPAR) antenna, developed by the Advanced Telecommunications Research ...
Berger, Jonathan Michael
core