Results 61 to 70 of about 6,182,474 (163)
RADAR CROSS SECTION CHARACTERIZATION OF CORNER REFLECTORS IN DIFFERENT FREQUENCY BANDS AND POLARIZATIONS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Corner Reflectors (CR) are standard passive radar targets which offer one of the best solutions for SAR calibration. Radar Cross Section (RCS) of corner reflectors plays a vital role for estimation of calibration parameters and hence back scatter ...
P. V. Jayasri +4 more
doaj +1 more source
Advanced Science, EarlyView.Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang +5 more
wiley +1 more source
Advanced Science, EarlyView.Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Shuo Sun +7 more
wiley +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Outdoor RCS Measurement Range for Spaceborne SAR Calibration Targets [PDF]
, 2007 The Microwaves and Radar Institute regularly performs calibration campaigns for spaceborne synthetic aperture radar (SAR) systems, among which have been X-SAR, SRTM, and ASAR.
Döring, Björn +2 more
core
Highly Accurate Calibration Target for Multiple Mode SAR Systems [PDF]
, 2010 The product quality with respect to radiometric accuracy of current and future space-borne synthetic aperture radar (SAR) systems depends on the grade of the utilized external calibration targets.
Looser, Philipp +4 more
core
Electrically Tuning Electromagnetic Wave Shielding in Phase Engineered 1T/2H‐MoS2‐Based Devices
Advanced Electronic Materials, EarlyView.Sub‐millimeter‐thick phase‐engineered 1T/2H‐MoS2 structures enable electrically tunable electromagnetic interference shielding through active modulation of microwave absorption and reflection. The coexistence of metallic and semiconducting phases, combined with a PVA/KOH gel electrolyte, provides dynamic control over charge transport and interfacial ...
Mustafa Akyol +3 more
wiley +1 more source
Radar cross-section estimation in reverberation chambers
, 2020 International audienceThis chapter is dedicated to recent advances in a rather unexplored range of applications. It deals with the ability of performing radar cross-section (RCS) measurements, using a reverberation chamber (RC).
Besnier, Philippe, Philippe Besnier
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Polarimetric Radar Cross-Section Imaging
, 2017 The radar cross-section (RCS) is a fundamental quantity which determines if a radar target can be reliably detected by a radar system. This quantity can be modified by altering the shape of the target.
Dallmann, Thomas Michael Björn
core +2 more sources
A Hybrid RCS Reduction Method for Wind Turbines
Energies, 2020 Wind turbine towers produce significant scatterings when illuminated by radars. Their reflectivity affects air traffic control, military surveillance, vessel tracking, and weather data sensing processes.
Shyh-Kuang Ueng
doaj +1 more source