Results 21 to 30 of about 1,855 (196)
Polarizablity of 2D and 3D conducting objects using method of moments [PDF]
, 2013 Fundamental antenna limits of the gain-bandwidth product are derived from polarizability calculations. This electrostatic technique has significant value in many antenna evaluations.
Lewis, Andrew +2 more
core +3 more sources
Leida xuebao, 2015 Passive corner reflectors and active transponders are often used as man-made reference targets in Synthetic Aperture Radar (SAR) radiometric calibration, With the emergence of new radar systems and the increasing demand for greater accuracy, wide-band ...
Hong Jun +3 more
doaj +1 more source
FEKO™ Simulation of Radar Scattering from Objects in Low Earth Orbit for ISAR Imaging
2020 International Applied Computational Electromagnetics Society Symposium (ACES), 2020 Objects in low earth orbit such as CubeSats and the International Space Station (ISS) move with constant velocity along a linear trajectory when viewed from a ground-based radar. The small change in attitude of the object as it flies overhead permits the generation of an inverse synthetic aperture radar (ISAR) image.
Aaron Brandewie, Robert Burkholder
openaire +1 more source
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 Adequate soil modeling is fundamental to assessing the grounding impedance of the grounding system and the transient responses in power systems. This paper aims to investigate three soil models with electrical parameters varying with frequency and water ...
Walter Luiz Manzi de Azevedo +4 more
doaj +1 more source
Analysis of Eddy currents induced by transverse and longitudinal gradient coils in different tungsten collimators geometries for SPECT/MRI integration [PDF]
, 2015 A
Joseph, Wout +7 more
core +3 more sources
Gain improvement of the Yagi-Uda Antenna Using Genetic Algorithm for Application in DVB-T2 Television Signal Reception in Tanzania [PDF]
Journal of Interdisciplinary Sciences, 2017 Region 2 UHF Frequency band is the frequency range which is used for transmitting Television signals in East Africa. Yagi-uda antenna is an array Antenna designed for various applications, in this paper a 5-element yagi-uda antenna is designed and ...
Twahir Kazema, Kisangiri Michael
doaj
Multi-radar fusion technique for high-resolution ISAR imaging in sea-cluttered environment
The Journal of Engineering, 2019 Radar imaging of the ship is one of the important means for surveillance and reconnaissance of targets. Here, the K-distribution is used for the statistical characterisation of echo model in sea-clutter environment.
Liu Yi +3 more
doaj +1 more source
IEEE Access, 2019 Coherent processing of distributed radar has huge advantages over processing of a single radar. In this paper, maximal positioning range of distributed coherent receiving radar is studied. Coherent receiving gain is defined to evaluate the performance of
Weirong Sun, Ying Zhang
doaj +1 more source
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 This work introduces a low-profile, compact microstrip patch antenna for 5G applications using a slotted semi-circular ground plane and a slotted rectangular parasitic element. This patch antenna in the shape of a wrench offers a wide impedance bandwidth
Liton Chandra Paul +6 more
doaj +1 more source
, 2014 In this study, two software packages using different numerical techniques FEKO 6.3 with Finite-Element Method (FEM) and XFDTD 7 with Finite Difference Time Domain Method (FDTD) were used to assess exposure of 3D models of square, rectangular, and ...
Abdelsamie, Maher A. A. +3 more
core +1 more source