Results 61 to 70 of about 4,037 (224)
Noninvasive Intelligent Brain‐Metasurface System for Real‐Time Electromagnetic Wave Manipulation
A noninvasive intelligent brain–computer interface (BCI) is integrated with a reconfigurable metasurface to establish a direct neural‐to electromagnetic transduction pathway for real time, multimodal wave control. By combining convolutional‐neural‐network‐based decoding of motor‐imagery electroencephalography (EEG) signals with threshold‐based ...
Xiao Hai +3 more
wiley +1 more source
Spaceborne Bi- and Multistatic SAR: Potential and Challenges [PDF]
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability ...
Moreira, Alberto, Krieger, Gerhard
core +1 more source
An Active Beam‐Reconfigurable Retrodirective Array
The proposed beam‐reconfigurable retrodirective array not only enables retroreflection toward the signal source but also achieves flexible beam steering via a tunable reflection plate, offering a viable solution for real‐time multipoint communication and multitarget wireless power transfer.
Wen Yue Wei +5 more
wiley +1 more source
A Hybrid RCS Reduction Method for Wind Turbines
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
The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li +4 more
wiley +1 more source
Radar cross section (RCS) simulation for wind turbines [PDF]
Wind-turbine power provides energy-independence and greenhouse-gas reduction benefits, but if wind turbines are built near military and commercial radar and communication installations, they can cause degradation in the systems performance.
Ton, Cuong
core
Analysis of SPRITE : A new sparse approach for 3D high resolution RCS imaging
Here, the authors present the application of an original high resolution method, named SPRITE (for SParse Radar Imaging TEchnique), for 3D high resolution radar cross section (RCS) imaging.
Thomas Benoudiba‐Campanini +3 more
doaj +1 more source
This work proposes a high static magnetic field (HSMF) driven dual‐low‐dimension strategy for fabricating magnetic‐dielectric heterostructure (Fe3O4@MoS2) chains with programmable lengths. The constructed successive magnetic‐dielectric synergy, arising from uniaxial anisotropy‐enhanced magnetic response and abundant heterointerfaces that boost ...
Zhuolin Li +5 more
wiley +1 more source
Geometrical Effects of Radar Cross Section (RCS) for Military Applications [PDF]
In this research, geometrical analysis of Radar Cross Section (RCS) for military applications is presented. The prime effort is to find the presence of complex and arbitrary objects by monostatic radar. We performed MATLAB simulations to obtain the
Iroegbu, C., Okoro, O. I.
core
Vapor phase infiltration (VPI) enables atomic‐level dielectric regulation in conductive polymer foams. The VPI‐treated foam exhibits enhanced absorption efficiency per unit thickness (~2.6 times), dynamic frequency tunability (94.5% coverage in 2–18 GHz), and on/off switching ability while retaining performance under acid/alkali exposure and repeated ...
Pengpeng Mou +6 more
wiley +1 more source

