Results 11 to 20 of about 1,730,200 (132)

Fabrication of Al/Ni core–shell pigments via galvanic displacement and their application in radar-infrared compatible stealth coatings

open access: yesJournal of Materials Research and Technology
The Al/Ni magnetic core–shell pigments were successfully synthesized in this study using the galvanic displacement method. A dense nickel shell was formed on the surface of a flake Al pigment (Al:Ni2+ = 1:0.5), resulting in a decrease in its lightness by
Biao Wei   +6 more
doaj   +4 more sources

Residual stress evolution and failure behaviour of High-Temperature Radar-Infrared compatible stealth coatings under thermal cycles considering interface morphology

open access: yesMaterials & Design
Stealth performance has become a core capability of modern advanced aircraft, receiving widespread attention and rapid development in recent years. In this study, an ultra-thin high-temperature radar-infrared compatible stealth coating (HRISC) with ...
Wei Pi   +5 more
doaj   +3 more sources

The dependence of radar target detectability on array weighting function [PDF]

open access: yes, 2009
Presented at the IET-Radar 2007 Conference Edinburgh 15-18 October 2007This paper describes simulation work to assess the detectability of targets by an airborne fire control radar (FCR) operating in a medium pulse repetition frequency (PRF) mode in ...
Alabaster, Clive M., Hughes, Evan J.
core   +7 more sources

Infrared stealth metamaterials

open access: yesCailiao gongcheng, 2020
The basic principles and methods of infrared radiation and infrared stealth technology were discussed in this paper. It was found that flexible regulation of multi-band spectrum was the key to realize infrared stealth compatible with radar stealth, laser
LIU Xiao-ming   +5 more
doaj   +1 more source

Deep Learning Assisted Optimization of Metasurface for Multi-Band Compatible Infrared Stealth and Radiative Thermal Management. [PDF]

open access: yesNanomaterials (Basel), 2023
Infrared (IR) stealth plays a vital role in the modern military field. With the continuous development of detection technology, multi-band (such as near-IR laser and middle-IR) compatible IR stealth is required.
Wang L, Dong J, Zhang W, Zheng C, Liu L.
europepmc   +2 more sources

Research on the Infrared Radiation Suppression of the High-Temperature Components of the Helicopter with an Integrated Infrared Suppressor

open access: yesAerospace, 2023
The integrated infrared suppressor can reduce the infrared radiation signal of a helicopter and is compatible with radar-acoustic stealth. However, the issues that are caused by the integrated infrared suppressor, such as temperature increases on the ...
Zongyao Yang, Jingzhou Zhang, Yong Shan
doaj   +1 more source

Optimal Design of Infrared Wavelength‐Selective and Microwave Transmitting Bionic Metasurface

open access: yesAdvanced Materials Interfaces, 2023
The radar and infrared (IR) compatible stealth technology is an important technology in the military field. Inspired by the special triangular‐shaped hairs from the Saharan silver ants, a bionic structure with IR wavelength‐selective emission and large ...
Kuilong Song   +4 more
doaj   +1 more source

A reflective-backing-free metamaterial absorber with broadband response [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
In this paper, we propose a polarization-independent and broadband perfect infrared (IR) metamaterial absorber (MA) without reflective backing. The proposed absorber is a periodic meta-atom array consisting of metal-dielectric-multilayer truncated cones ...
Cuilian Xu   +6 more
doaj   +1 more source

Developments in target micro-Doppler signatures analysis : radar imaging, ultrasound and through-the-wall radar [PDF]

open access: yes, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Woodbridge, K.   +3 more
core   +5 more sources

Radar-Infrared Multi-Scale Bi-Stealth via Optically Transparent Chaotic Coding Metasurface. [PDF]

open access: yesNanomicro Lett
The rapid development of multispectral detection technology urgently requires the simultaneous suppression of microwave and infrared (IR) signatures. However, conventional strategies suffer from limited functional integration, complex structures, and ...
Wang Y   +9 more
europepmc   +2 more sources

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