Results 21 to 30 of about 1,807 (185)
A Ship Discrimination Method Based on High-Frequency Electromagnetic Theory
Remote Sensing, 2022 Ship target detection using radar has important applications in the military and civilian fields. As a decoy, the corner reflector (CR) can successfully deceive a radar by its strong radar cross-section (RCS) to protect a ship.
Yaomin He +4 more
doaj +1 more source
Simulation-based configurations study of active millimetre-wave imaging system for personal security
The Journal of Engineering, 2019 Active millimetre-wave (mm-wave) imaging techniques and systems have been widely investigated and developed, due to their ability to detect personal carried concealed weapons and other contraband, at airports and other secure locations.
Yan You, LingBo Qiao, ZiRan Zhao
doaj +1 more source
Simulated design strategies for SPECT collimators to reduce the eddy currents induced by MRI gradient fields [PDF]
, 2015 Combining single photon emission computed tomography (SPECT) with magnetic resonance imaging (MRI) requires the insertion of highly conductive SPECT collimators inside the MRI scanner, resulting in an induced eddy current disturbing the combined system ...
Joseph, Wout +6 more
core +2 more sources
Calculating Array Patterns Using an Active Element Pattern Method with Ground Edge Effects [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2018 The array patterns of a patch array antenna were calculated using an active element pattern (AEP) method that considers ground edge effects. The classical equivalent radiation model of the patch antenna, which is characterized by two radiating slots, was
Sun-Gyu Lee, Jeong-Hae Lee
doaj +1 more source
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
Remote Sensing, 2023 Aiming at improving the accuracy and efficiency of scattering information from multiple targets in near-field regions, this paper proposes a near-field iterative physical optics (IPO) method based on a modified near-field Green’s function for the ...
Qingkuan Wang +5 more
doaj +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
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Robust variable-fidelity optimization of microwave filters using co-Kriging and trust regions [PDF]
, 2013 A
Couckuyt, Ivo +3 more
core +2 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
IEEE Access, 2023 This work is concerned with a detailed study of an active antenna, which can serve as a prototype of a phased array antenna element for a future lunar very-low-frequency (VLF) radio telescope operating in the frequency range of 1–30 MHz.
Peter L. Tokarsky +2 more
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