Results 31 to 40 of about 1,865 (183)

Stealth Aircraft Penetration Trajectory Planning in 3D Complex Dynamic Environment Based on Sparse A* Algorithm

open access: yesAerospace
To find a trajectory with low radar detection probability for stealth aircraft under the assumption of 2D space, performing a rapid turning maneuver is a useful way to reduce the radar detection probability of an aircraft by changing the azimuth angle ...
Jingxin Guan   +3 more
doaj   +1 more source

RCS computations of targets with plasmonic coatings

open access: yesEPJ Applied Metamaterials, 2015
As far as RADAR Cross Section (RCS) computations are concerned, metamaterial coating modeling issues lead to cases of millions of unknowns for targets greater than the wavelength.
Vacus Olivier, Saint-Flour Carol
doaj   +1 more source

Classification of RCS sequences based on KL divergence

open access: yesThe Journal of Engineering, 2019
Radar cross section (RCS) is an important characteristic of radar targets. The mean, variance, skewness, kurtosis, varying patterns of RCS sequences provide rich features for radar target classification.
Qiang Cheng, Li Chen, Yaolin Zhang
doaj   +1 more source

Research on Radar Cross Section Measurement Based on Near-field Imaging of Cylindrical Scanning

open access: yesLeida xuebao, 2015
A new method of Radar Cross Section (RCS) measurement based on near-field imaging of cylindrical scanning surface is proposed. The method is based on the core assumption that the target consists of ideal isotropic scattered centers.
Xing Shu-guang   +2 more
doaj   +1 more source

Analysis of Quantum Radar Cross-Section by Canonical Quantization Method (Full Quantum Theory)

open access: yesIEEE Access, 2020
This article investigates the difference between two quantum-based theories to calculate the radar cross-section (RCS). Quantum radar cross-section (QRCS) has been commonly analyzed using the dipole approximation method, and the related results show that
Ahmad Salmanogli, Dincer Gokcen
doaj   +1 more source

Radar Cross Section (RCS) of perfect electromagnetic conductor (PEMC) cylinder by a Laguerre–Gaussian beam

open access: yesKuwait Journal of Science, 2022
Radar Cross Section (RCS) of perfect electromagnetic conductor (PEMC) cylinder using an incident Laguerre–Gaussian (LG) beam has been investigated. LG beam potential function is used to expand the incident and scattered electromagnetic (EM) field components.
M.Arfan   +3 more
openaire   +2 more sources

Target scattering characteristics for OAM-based radar

open access: yesAIP Advances, 2018
The target scattering characteristics are crucial for radar systems. However, there is very little study conducted for the recently developed orbital angular momentum (OAM) based radar system. To illustrate the role of OAM-based radar cross section (ORCS)
Kang Liu   +3 more
doaj   +1 more source

Tailoring Successive Magnetic‐Dielectric Synergy for Enhancing Electromagnetic Absorption in Ultralong Heterostructure Chains Assisted by High Static Magnetic Field

open access: yesAdvanced Science, EarlyView.
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

Radar cross-section (RCS) analysis of high frequency surface wave radar targets

open access: yesTurkish Journal of Electrical Engineering and Computer Sciences, 2010
Realistic high frequency surface wave radar (HFSWR) targets are investigated numerically in terms of electromagnetic wave – target interactions. Radar cross sections (RCS) of these targets are simulated via both the finite-difference time-domain (FDTD) method and the Method of Moments (MoM).
Çakır, Gonca, Sevgi, Levent
openaire   +3 more sources

Recent Advances in Programmable Metasurfaces and Meta‐Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao   +4 more
wiley   +1 more source

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