Results 31 to 40 of about 2,357 (209)

Refocusing Moving Ship Targets in SAR Images Based on Fast Minimum Entropy Phase Compensation

open access: yesSensors, 2019
Moving ship targets appear blurred and defocused in synthetic aperture radar (SAR) images due to the translation motion during the coherent processing. Motion compensation is required for refocusing moving ship targets in SAR scenes.
Xiangli Huang   +4 more
doaj   +1 more source

Terahertz inverse synthetic aperture radar
(ISAR) imaging with a 
quantum cascade laser transmitter

open access: yesOptics Express, 2010
A coherent transceiver using a THz quantum cascade (TQCL) laser as the transmitter and an optically pumped molecular laser as the local oscillator has been used, with a pair of Schottky diode mixers in the receiver and reference channels, to acquire high-resolution images of fully illuminated targets, including scale models and concealed objects. Phase
Andriy A, Danylov   +11 more
openaire   +2 more sources

Resolution and Micro-Doppler Effect in Bi-ISAR System (in English)

open access: yesLeida xuebao, 2013
Compared to the monostatic radar, bistatic radar has many special characteristics because of its spatial complexity. Bistatic Inverse Synthetic Aperture Radar (Bi-ISAR) can be employed as a radar imaging tool for obtaining non-cooperative target images ...
Deng Dong-hu   +4 more
doaj   +1 more source

A Novel Passive Jamming Method Against ISAR Based on Resonance Absorption Effect of Metamaterials

open access: yesIEEE Access, 2018
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

ISAR Image formation with a combined Empirical Mode Decomposition and Time-Frequency Representation

open access: yes, 2015
International audienceIn this paper, a method for Inverse Synthetic Aperture Radar (ISAR) image formation based on the use of the Complex Empirical Mode Decomposition (CEMD) is proposed.
Bay Ahmed , Ahmed Hadj   +2 more
core   +2 more sources

Compressive sensing approach for high-resolution ISAR image reconstruction and autofocus

open access: yesThe Journal of Engineering, 2019
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

Transient Scattering Echo Simulation and ISAR Imaging for a Composite Target-Ocean Scene Based on the TDSBR Method

open access: yesRemote Sensing, 2022
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

Dynamic Multistatic Synthetic Aperture Radar Imaging: Resolving Motion via Differential Semblance and k‐Space Diversity

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
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

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
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

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