Results 21 to 30 of about 18,674 (260)

Comparative analysis of airborne targets radar cross-section corner and lens simulators advantages and disadvantages

open access: yesНаука і техніка Повітряних Сил Збройних Сил України
One of the main elements of modern and promising Unmanned Aircraft System – Target equipment is the various types of means of radar cross-section simulation in ultra-high frequency electromagnetic waves.
Г. В. Іванець   +4 more
doaj   +1 more source

Monostatic radar cross section of flying wing delta planforms

open access: yesEngineering Science and Technology, an International Journal, 2017
The design of the flying wing and its variants shapes continues to have a profound influence in the design of the current and future use of military aircraft.
Sevoor Meenakshisundaram Vaitheeswaran   +3 more
doaj   +1 more source

Bistatic High Frequency Radar Ocean Surface Cross Section for an FMCW Source with an Antenna on a Floating Platform

open access: yesInternational Journal of Antennas and Propagation, 2016
The first- and second-order bistatic high frequency radar cross sections of the ocean surface with an antenna on a floating platform are derived for a frequency-modulated continuous wave (FMCW) source.
Yue Ma, Weimin Huang, Eric W. Gill
doaj   +1 more source

Multiwall carbon nanotube enhance the invisibility effect from radar

open access: yesResults in Physics, 2020
The shape and size do not always give us the desired result of low cross-section on the radar of observable specifications. Nowadays, to improve lower radar cross-section, most of the country is using radar-absorbing materials, in addition to the shape ...
Niranjan Kumar, Srest Somay
doaj   +1 more source

Ultra-Broad Band Radar Cross Section Reduction of Waveguide Slot Antenna with Metamaterials [PDF]

open access: yesRadioengineering, 2016
To reduce the radar cross section of a waveguide slot antenna, a three-layer metamaterial is presented based on orthogonal double split-ring resonators. The absorption characteristics of three-layer metamaterial are demonstrated by simulation.
Qiang Fu   +4 more
doaj  

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

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

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

Wearable Kirigami‐Apertured Capacitive Sensors for Continuous Cardiac Volumetric Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A wearable kirigami‐apertured carbon nanotube‐paper composite (K‐CPC) capacitive sensor enables cardiac volumetric monitoring. The kirigami process creates a central aperture with cantilevered fibers that confine the electric field, enhancing both sensitivity and lateral resolution.
Yu‐Jen Cheng   +4 more
wiley   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

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