Results 21 to 30 of about 6,280 (175)

Two-Dimensional ISAR Fusion Imaging of Block Structure Targets

International Journal of Antennas and Propagation, 2021
The range resolution and azimuth resolution are restricted by the limited transmitting bandwidth and observation angle in a monostatic radar system. To improve the two-dimensional resolution of inverse synthetic aperture radar (ISAR) imaging, a fast ...
Xiaoxiu Zhu, Limin Liu, Baofeng Guo, Wenhua Hu, Lin Shi, Juntao Ma   +5 more
doaj   +1 more source

Velocity-ISAR: On the application of ISAR techniques to multichannel SAR imaging [PDF]

2015 IEEE Radar Conference (RadarCon), 2015
The U.S. Naval Research Laboratory (NRL) Multichannel Synthetic Aperture Radar (MSAR) consists of multiple receive channels arranged along the flight direction and is unique in its ability to measure and correct for radial motion at each pixel in the scene. A well-known algorithm for performing MSAR imaging, and which have we applied for the first time
Raj, Raghu G., Jansen, Robert W., Lipps, Ronald D., Sletten, Mark A., Rosenberg, Luke   +4 more
openaire   +1 more source

Deception Jamming Against ISAR With Coupled Two-Dimensional Compressive Sensing via Sub-Nyquist Sampling

IEEE Access, 2018
Sub-Nyquist sampling is a common means of interfering with inverse synthetic aperture radar (ISAR) imaging, which has been validated for the feasibility of 1-D compressive sensing (CS) ISAR imaging.
Jiyuan Chen, Xiaoyi Pan, Letao Xu, Wei Wang   +3 more
doaj   +1 more source

A bistatic inverse synthetic aperture radar sparse aperture high‐resolution imaging algorithm with migration compensation

IET Radar, Sonar & Navigation, 2022
In recent years, bistatic inverse synthetic aperture radar (Bi‐ISAR) imaging of targets with sparse aperture has attracted more and more attention. One of the critical issues is that the Bi‐ISAR imaging of some large targets with rotational motions is ...
Hanshen Zhu, Wenhua Hu, Baofeng Guo, Xiaoxiu Zhu, Bin Zhou, Dongfang Xue, Chang'an Zhu   +6 more
doaj   +1 more source

An Image Registration Method Based on Correlation Matching of Dominant Scatters for Distributed Array ISAR

Sensors, 2022
Distributed array radar provides new prospects for three-dimensional (3D) inverse synthetic aperture radar (ISAR) imaging. The accuracy of image registration, as an essential part of 3D ISAR imaging, affects the performance of 3D reconstruction.
Liqi Zhang, Yanlei Li
doaj   +1 more source

Joint estimation of imaging plane and three‐dimensional structure based on inverse synthetic aperture radar image sequences

Electronics Letters, 2023
It is difficult to estimate the effective rotation velocity for non‐triaxial stabilized space targets, which leads to deviations in the estimation of imaging plane vectors and azimuth resolution.
Afei Liu, Shuanghui Zhang, Chi Zhang, Yongxiang Liu   +3 more
doaj   +1 more source

Continuity Pattern Structure of Target Scene in Support of Multiple-Channel ISAR Imagery

IEEE Access, 2019
This paper presents a multiple-channel ISAR system for multiple air-targets imaging by illuminating a sequence of N narrow and high-gain signal beams over a wide area.
Jingjing Wang, Meiru Liu, Hang Zhang, Shengliang Han, Liren Zhang   +4 more
doaj   +1 more source

BSBL-based multiband fusion ISAR imaging

The 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, Junling Wang, Lizhi Zhao, Meiguo Gao   +3 more
doaj   +1 more source

Coherent compensation and high‐resolution technology of multi‐band inverse synthetic aperture radar fusion imaging

IET Radar, Sonar & Navigation, 2021
Multi‐band inverse synthetic aperture radar (ISAR) fusion imaging technology can effectively improve the range resolution without incurring high hardware cost.
Xiaoxiu Zhu, Limin Liu, Baofeng Guo, Wenhua Hu, Juntao Ma, Lin Shi   +5 more
doaj   +1 more source

Three‐dimensional point cloud reconstruction of inverse synthetic aperture radar image sequences based on back projection and iterative closest point fusion

IET Radar, Sonar & Navigation, 2023
In order to recover the three‐dimensional (3D) structure of the target from sequential inverse synthetic aperture radar (ISAR) images, the factorisation method is generally used.
Yu Wang, Shuai Li, Tingting He, Biao Tian, Zengping Chen   +4 more
doaj   +1 more source