Results 31 to 40 of about 576 (172)
A Novel Passive Jamming Method Against ISAR Based on Resonance Absorption Effect of Metamaterials
Based on resonance absorption effect of metamaterials, a novel passive jamming method against Inverse Synthetic Aperture Radar (ISAR) is proposed in this paper.
Jin Xu +3 more
doaj +1 more source
Resolution Analysis of Microwave Radar Coincidence Imaging for Multiple Imaging Points
In this paper, we propose an Eigen Subspace Characterisation method for analysing the azimuth resolution of an MRCI system, particularly in scenarios involving multiple imaging points within a coherent area. The ESC method is implemented by first constructing the eigen subspace from the reference signal matrix of the MRCI system using the Singular ...
Die Li +8 more
wiley +1 more source
Moving targets often appear defocused and displaced in SAR imagery, complicating detection and recognition—especially when displaced into cluttered regions, where signal‐to‐background ratio is reduced. This work presents a multistatic SAR framework that extracts moving target signatures and reconstructs focused images, providing new insights into the ...
Francis Watson +2 more
wiley +1 more source
Subinteger Range-Bin Alignment Method for ISAR Imaging of Noncooperative Targets
Inverse Synthetic Aperture Radar (ISAR) is a coherent radar technique capable of generating images of noncooperative targets. ISAR may have better performance in adverse meteorological conditions than traditional imaging sensors.
Pérez-Martínez F +1 more
doaj +2 more sources
Compressive sensing approach for high-resolution ISAR image reconstruction and autofocus
In this study, a novel autofocus method is presented to achieve high-resolution inverse synthetic aperture radar (ISAR) image reconstruction with limited measurements in the compressive sensing (CS) framework.
Min-Seok Kang, Kyung-Tae Kim
doaj +1 more source
To address the issues in radar automatic target recognition (RATR) based on high‐resolution range profiles (HRRP)—specifically, the inability of closed‐set methods to handle unknown categories and the limitation of conventional open‐set methods that can only reject unknown categories without further subdivision—this paper proposes the MHA–CoST open‐set
Bowen Bai +3 more
wiley +1 more source
Sparse aperture wide-angle inverse synthetic aperture radar imaging based on compressive sensing
In high-resolution inverse synthetic aperture radar (ISAR) imaging, if the authors enlarge observation angle, range migration would appear and that can cause defocus problem.
Hou Yingni, Wang Xia
doaj +1 more source
We propose an inverse synthetic aperture radar (ISAR) imaging algorithm for a composite target-ocean scene based on time-domain shooting and bouncing rays (TDSBR) method.
Guangbin Guo +4 more
doaj +1 more source
In this paper, we first establish the dual‐band airborne radar wideband echo signal model and propose a space‐time‐frequency adaptive processing method based on it. Firstly, in the passive mode, the poles of the dual band are estimated by the matrix pencil method, and the incoherent components are estimated through the phase relationship between the ...
Ming Hou +6 more
wiley +1 more source
In this article, a novel rotational motion estimation method via analytical solution is proposed and has been successfully applied to the cross‐range scaling. The proposed method can achieve high estimation accuracy without relying on iterative search procedures, which typically occur in existing methods and often result in high computational cost or ...
Rui Cao, Pingping Lu, Yong Wang
wiley +1 more source

