Results 21 to 30 of about 431 (155)

Ship Target Imaging in Airborne SAR System Based on Automatic Image Segmentation and ISAR Technique

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The airborne synthetic aperture radar (SAR) image of ship target will be blurred for the complex motion of the target, which will influence the performance of feature extraction and target classification.
Rui Cao, Yong Wang, Bin Zhao, Xiaofei Lu
doaj   +1 more source

Distributed MIMO-ISAR Sub-image Fusion Method

open access: yesLeida xuebao, 2017
The fast fluctuation associated with maneuvering a target’s radar cross-section often affects the imaging performance stability of traditional monostatic Inverse Synthetic Aperture Radar (ISAR).
Gu Wenkun, Wang Dangwei, Ma Xiaoyan
doaj   +1 more source

High Resolution Full-Aperture ISAR Processing through Modified Doppler History Based Motion Compensation

open access: yesSensors, 2017
A high resolution inverse synthetic aperture radar (ISAR) technique is presented using modified Doppler history based motion compensation. To this purpose, a novel wideband ISAR system is developed that accommodates parametric processing over extended ...
Jung-Hwan Song   +3 more
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

OFDM-ISAR Sparse Optimization Imaging and Motion Compensation

open access: yesLeida xuebao, 2016
Orthogonal Frequency Division Multiplexing (OFDM) technology has been utilized in radar imaging to obtain high-resolution range profiles without inter-range cell interference.
Wu Min   +3 more
doaj   +1 more source

Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar

open access: yesLeida xuebao, 2020
At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN   +5 more
doaj   +1 more source

BSBL-based multiband fusion ISAR imaging

open access: yesThe Journal of Engineering, 2019
Multiband fusion imaging can effectively improve the range resolution of inverse synthetic aperture radar (ISAR) imaging. In this study, the block sparse Bayesian learning (BSBL) method is applied to multiband fusion imaging to achieve high-resolution ...
Di Xiong   +3 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging: A Historical Perspective and State-of-the-Art Survey

open access: yesIEEE Access, 2021
Radar can obtain high spatial resolution at large operating distances, and its operation is largely independent from weather and lighting conditions. This makes it an important instrument in an ever-increasing number of applications requiring robust and ...
Risto Vehmas, Nadav Neuberger
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

An Efficient Preprocessing Approach for Airborne Hybrid SAR and ISAR Imaging of Ship Target Based on Kernel Distribution

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The airborne hybrid synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) imaging for the ship target is very important in the field of ocean surveillance, but it suffers from the problem of high computational complexity.
Rui Cao   +3 more
doaj   +1 more source

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