Results 1 to 10 of about 6,182,474 (163)

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

IEEE 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

The Doctrine of State Necessity

The Modern Law Review, EarlyView.
This article examines the doctrine of state necessity as a distinct but relatively underexplored doctrine of constitutional law. Drawing on case law from a range of jurisdictions, it considers instances in which courts have accepted otherwise unconstitutional measures as lawful in order to preserve the operation of state institutions or protect ...
Athanasios Peftinas
wiley   +1 more source

Textile Metamaterials: Design, Fabrication, and Emerging Applications

Applied Research, Volume 5, Issue 5, October 2026.
Textile metamaterials combine sub‐wavelength electromagnetic structures with textile architectures, enabling flexible and wearable platforms for wave manipulation. This review highlights their evolution, fabrication strategies, electromagnetic characteristics, and emerging applications, while identifying key challenges and opportunities for next ...
Samanta M. de Holanda, Arthur M. da Silva, Thiago F. Santos, Dieter Rahmadiawan, Francisco D. M. Nobre, Jose Heriberto Oliveira do Nascimento, Idalmir de Souza Queiroz Júnior, Antonio Sergio Bezerra Sombra, Humberto D. de Andrade   +8 more
wiley   +1 more source

Ocean Surface Cross Section for Bistatic HF Radar Incorporating a Six DOF Oscillation Motion Model

Remote Sensing, 2019
To investigate the characteristics of sea clutter, based on ocean surface electromagnetic scattering theory, the first- and second-order ocean surface scattering cross sections for bistatic high-frequency (HF) radar incorporating a multi-frequency six ...
Guowei Yao, Junhao Xie, Weimin Huang
doaj   +1 more source

Ultra‐High Isolation Decoupling and Matching Network for mmWave Antennas in Near‐Range FMCW Radars

Microwave and Optical Technology Letters, Volume 68, Issue 10, October 2026.
ABSTRACT A decoupling and matching network (DMN) based on substrate integrated coaxial line technique is proposed to suppress the mutual coupling between a pair of transmitting and receiving antennas operating at 35 GHz. The distorted radiation patterns, typically observed in closely spaced antennas, were improved by introducing carefully designed ...
Zhi Yue Xu, Xinyi Tang, Zhi Ning Chen
wiley   +1 more source

AIMP-Based Power Allocation for Radar Network Tracking Under Countermeasures Environment

Sensors
For radar system tracking, a higher radar echo signal to interference and noise ratio (SINR) implies a higher tracking accuracy. However, in a countermeasures environment, increasing the transmit power of a radar may not lead to a higher SINR due to ...
Xiaoyou Xing, Longxiao Xu, Lvwan Nie, Xueting Li   +3 more
doaj   +1 more source

Analytically Co‐Designed Absorption‐Diffusion Coding Metasurface for RCS Reduction

Microwave and Optical Technology Letters, Volume 68, Issue 10, October 2026.
ABSTRACT This work proposes a novel and simple design method for an absorption‐diffusion metasurface, combining a coding diffusion‐type metasurface with an absorbing layer. The diffusion and absorption properties are obtained through an analytical co‐design methodology derived from a straightforward Smith chart‐based construction.
Thomas Uguen, Raphaël Gillard, Renaud Loison, Jeanne Pagés‐Mounic, Gildas Kubické, Philippe Pouliguen   +5 more
wiley   +1 more source

Overview of RCS measurement technology

Dianzi Jishu Yingyong
Radar Cross Section (RCS) is a key physical quantity that measures the ability of a target to scatter electromagnetic waves when illuminated by radar waves.
Zhang Yingmeng, Yu Shixing, Zhang Jungang, Dai Liugang   +3 more
doaj   +1 more source

Carbon Nanorods With Adhered Monodisperse Cobalt Nanoparticles Exhibiting Electromagnetic Wave Absorption and Antibacterial Potential

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li, Chen Wang, Liwei Sun, Shuai Li, Qing Zhou, Rui Liu, Yaqi Li, Changrui Cao, Xixin Yan, Xuesong Lin, Lianyi Guo   +10 more
wiley   +1 more source

Plasmon resonances management of meta-mirror for combining radar cross section (RCS) reduction and specular reflection with frequency selectivity. [PDF]

Sci Rep, 2021
Pesarakloo A, Oruji A.
europepmc   +1 more source