Results 21 to 30 of about 16,245 (153)

Autofocusing of Maneuvering Targets in Terahertz Inverse Synthetic Aperture Radar Imaging Based on Damped Newton Method

Sensors, 2022
Maneuvering target imaging based on inverse synthetic aperture radar (ISAR) imaging has recently drawn significant attention. Among the many autofocusing technologies which are crucial in ISAR imaging, minimum-entropy-based autofocusing (MEA) is highly ...
Hetong Wang, Qi Yang, Hongqiang Wang, Bin Deng   +3 more
doaj   +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

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

Non-Cooperative Target Attitude Estimation Method Based on Deep Learning of Ground and Space Access Scene Radar Images

Mathematics, 2023
Determining the attitude of a non-cooperative target in space is an important frontier issue in the aerospace field, and has important application value in the fields of malfunctioning satellite state assessment and non-cooperative target detection in ...
Chongyuan Hou, Rongzhi Zhang, Kaizhong Yang, Xiaoyong Li, Yang Yang, Xin Ma, Gang Guo, Yuan Yang, Lei Liu, Feng Zhou   +9 more
doaj   +1 more source

The Revised Identification of Seniors At Risk screening tool predicts readmission in older hospitalized patients: a cohort study

BMC Geriatrics, 2022
Background The Identification of Seniors at Risk (ISAR) screening tool is a widely-used risk stratification tool for older adults in the emergency department (ED). Few studies have investigated the use of ISAR to predict outcomes of hospitalized patients.
Jane McCusker, Rebecca N. Warburton, Sylvie D. Lambert, Eric Belzile, Manon de Raad   +4 more
doaj   +1 more source

Translational Motion Compensation for ISAR Imaging Based on Range Joint Fast Orthogonal Matching Pursuit Algorithm

IEEE Access, 2022
Accurate translational motion compensation (TMC) is the key procedure of inverse synthetic aperture radar (ISAR) imaging. Under the condition of sparse aperture, the correlation of adjacent pulses is severely destroyed, which brings a few challenges to ...
Xu Wei, Jun Yang, Mingjiu Lv, Wenfeng Chen, Xiaoyan Ma   +4 more
doaj   +1 more source

Identification of seniors at risk scoring in geriatric trauma: Exploring clinical outcome correlations

Journal of Emergencies, Trauma and Shock, 2022
Introduction: Geriatric trauma patients (GTP) make up an increasing percentage of the overall trauma population. Due to frailty, GTP are at an increased risk of morbidity and readmission.
Stephen D Dingley, Wayne B Bauerle, Christine Ramirez, Holly Weber, Rebecca Wilde-Onia, Ann-Marie Szoke, Adam Benton, Danielle Frutiger, Alaa-Eldin Mira, William Hoff, Stanislaw P Stawicki   +10 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging Based on the Non-Convex Regularization Model [PDF]

Radioengineering
Compressed Sensing (CS) has been shown to be an effective technique for improving the resolution of inverse synthetic aperture radar (ISAR) imaging and reducing the hardware requirements of radar systems.
Y. Zhao, F. Yang, C. Wang, F. Ye, F. Zhu, Y. Liu   +5 more
doaj  

Hybrid polarimetry inverse synthetic aperture radar

IET Radar, Sonar & Navigation
The inverse synthetic aperture radar (ISAR) system exploits the movement of the target to form its high‐resolution image. Further, the multi‐polarisation acquisition in ISAR collects additional information on the target's scattering properties and ...
Ajeet Kumar, Elisa Giusti, Marco Martorella   +2 more
doaj   +1 more source

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

IEEE 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, Bowen Bai, Chunxi Dong, Guoqing Zhao   +3 more
doaj   +1 more source