Results 31 to 40 of about 6,179,327 (244)

Terahertz Radar Cross Section Measurements Based on Millimeter-wave Converter

open access: yesLeida xuebao, 2018
The measurement system has been built with Stepped Frequency Continuous Wave (SFCW) signal for Radar Cross Section (RCS) measurements in free-space at 220~330 GHz.
Wu Yang   +3 more
doaj   +1 more source

Radar Signatures of a Passenger Car [PDF]

open access: yes, 2007
The upcoming new SAR satellites like TerraSAR-X and Radarsat-2 offer high spatial image resolution and dual receive antenna capabilities which open new opportunities for world-wide traffic monitoring applications.
Palubinskas, Gintautas, Runge, Hartmut
core   +1 more source

Full Physics Simulation Study of Guardrail Radar-Returns for 77 GHz Automotive Radar Systems

open access: yesIEEE Access, 2018
Radar is one of the primary active safety sensors for advanced driver assistance systems. Autonomous vehicles will heavily rely on the ability of automotive radar systems to accurately identify crucial targets while filtering out false targets.
Ushemadzoro Chipengo
doaj   +1 more source

Calibration and Clutter Cancellation Techniques for Accurate Wideband Radar Cross Section Measurements [PDF]

open access: yes, 2021
The expected received power is a key design parameter when designing a radar system. The radar’s receiver must be sensitive enough to detect the object of interest without being saturated by the highest received power. The object of interest’s visibility
Jarvis, Rachel
core  

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

open access: yesAdvanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic   +2 more
wiley   +1 more source

Dual-Band Diffusive Metasurface-Based Reflector With Low Out-of-Band Backscattering

open access: yesIEEE Access, 2020
This article describes a dual-band diffusive metasurface-based reflector, with a specular reflection band together with two sidebands which exhibit low radar cross-section (RCS).
Qihao Lv   +5 more
doaj   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

open access: yesAdvanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang   +11 more
wiley   +1 more source

Polarimetric radar cross-section imaging

open access: yes, 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 1985-   +1 more
core   +2 more sources

Introducing Equivalent Radar Cross Section – A First Step Toward new Radiometric Requirement Definitions [PDF]

open access: yes, 2014
Stringent radiometric SAR system requirements often significantly shape the design and cost of modern SAR systems. Yet the wording in current requirement documents is ambiguous, and a diligent conformance assessment at the end of project phases currently
Döring, Björn, Schwerdt, Marco
core  

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

open access: yesAdvanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy