Results 21 to 30 of about 4,022 (224)

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

Calibration and Clutter Cancellation Techniques for Accurate Wideband Radar Cross Section Measurements [PDF]

, 2021
The expected received power is a key design parameter when designing a radar system. The radar’s receiver must be sensitive enough to detect the object of interest without being saturated by the highest received power. The object of interest’s visibility
Jarvis, Rachel
core  

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

Are Pixel Intensities Proportional To Radar Cross Section In SAR Images?

, 2012
Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J., Schwerdt, Marco, Marco Schwerdt, Bjorn J. Doring   +3 more
core   +1 more source

Multipath Effect on Radar Cross Section Measurements in Natural Environment and Related Correction

, 2022
S.209-214Preliminary results regarding the multipath analysis due to the land surface (grassland and sweet corn) are shown using a X-band radar. The evaluations are based on the measured Radar Cross Section (RCS) variations of a calibrated target taken ...
Pavan, Gabriele, Galati, Gaspare, Wasserzier, Christoph   +2 more
core   +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

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

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