Results 41 to 50 of about 13,090 (253)

A Dynamic RCS and Noise Prediction and Reduction Method of Coaxial Tilt-Rotor Aircraft Based on Phase Modulation

Sensors, 2022
For tilt-rotor aircraft with coaxial rotors (coaxial rotor aircraft), reduction of radar cross section as well as acoustic noise can be essential for stealth design, and the rotation of the coaxial rotors can have an influence on noise and dynamic radar ...
Zeyang Wang, Jun Huang, Mingxu Yi, Shaoze Lu   +3 more
doaj   +1 more source

Terahertz Radar Cross Section Characterization using Laser Feedback Interferometry with a Quantum Cascade Laser [PDF]

, 2015
Radar cross section (RCS) measurements of complex, large objects are usually performed on scale models so that the measurement is carried out in a well-controlled environment.
A. Valavanis, A.D. Rakić, A.G. Davies, Balanis C.A., Chen L., D. Indjin, E.H. Linfield, Gente R., Giuliani G., H.S. Lui, K. Bertling, Knott E.F., Li H.Y., M. Lachab, Mezzapesa F.P., P. Dean, S.P. Khanna, T. Taimre, Wilfried G., Y.L. Lim   +19 more
core   +1 more source

Trajectory planning for uncrewed combat aircraft penetration with dynamic radar cross section constraint [PDF]

PeerJ Computer Science
The survivability and mission effectiveness of uncrewed combat aircraft (UCAV) is directly dependent on the probability of detection as determined by radar cross section (RCS) characteristics.
Yixuan Wang, Binbin Pei, Haojun Xu
doaj   +2 more sources

Comparison of Three Different Styles of Submarine Sails on Electromagnetic Scattering under the Detection of Airborne Radar

ITM Web of Conferences, 2018
This paper studies radar cross section of submarine sails on the water. Under the detection of the enemy’s airborne radar, considering the motion of the submarine, the sail model of radar pitch angle incidence range analysis is established.
Liu Ji, Huang Peilin, Zhao Yaodong, Ji Jinzu, Xue Fengli   +4 more
doaj   +1 more source

Analysis of Radar Cross Section of a Battleship Equipped with an Integrated Mast Module Based on PO and PTD [PDF]

Journal of the Korean Institute of Electromagnetic Engineering and Science, 2017
In this paper, we analyze the radar cross section (RCS) of a battleship equipped with an integrated mast module (IMM). The RCS of a battleship equipped with an IMM is calculated based on physical optics (PO) and the physical theory of diffraction (PTD ...
Hokeun Shin, Seokgon Lee, Dongmin Park, Jinwoo Shin, Myungsoo Chung, Sanghyun Park, Yong Bae Park   +6 more
doaj   +1 more source

Highly Accurate Radar Cross-Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference—Part I: Measurement and Results

Remote Sensing, 2023
Active Radar Calibrators (ARC), also called calibration transponders, are often used as reference targets for absolute radiometric calibration of radar systems due to their large achievable Radar Cross-Section (RCS).
Jens Reimann, Anna Maria Büchner, Sebastian Raab, Klaus Weidenhaupt, Matthias Jirousek, Marco Schwerdt   +5 more
doaj   +1 more source

RCS computations of targets with plasmonic coatings

EPJ 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

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

Aerospace
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, Jun Huang, Lei Song, Xiaoqiang Lu   +3 more
doaj   +1 more source

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

Leida 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, Lü Xiao-de, Ding Chi-biao   +2 more
doaj   +1 more source

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

IEEE 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