Results 21 to 30 of about 13,504 (151)

ISAR Imaging Algorithm Based on Iterative Weighted L2/L1 Norm Block Sparse Signal Recovery [PDF]

Jisuanji gongcheng, 2018
In order to realize fast and high resolution Inverse Synthetic Aperture Radar(ISAR)imaging,an iterative weighted L2/L1 norm block sparse recovery algorithm for ISAR imaging is proposed based on the target’s intrinsic block sparse structure information ...
FENG Junjie,ZHANG Gong
doaj   +1 more source

Three-Dimensional Geometry Reconstruction Method from Multi-View ISAR Images Utilizing Deep Learning

Remote Sensing, 2023
The three-dimensional (3D) geometry reconstruction method utilizing ISAR image sequence energy accumulation (ISEA) shows great performance on triaxial stabilized space targets but fails when there is unknown motion from the target itself.
Zuobang Zhou, Xiangguo Jin, Lei Liu, Feng Zhou   +3 more
semanticscholar   +1 more source

International Severe Asthma Registry (ISAR): 2017–2024 Status and Progress Update

Tuberculosis and Respiratory Diseases
The International Severe Asthma Registry (ISAR) was established in 2017 to advance the understanding of severe asthma and its management, thereby improving patient care worldwide.
D. Larenas-Linnemann, C. Rhee, A. Altraja, John Busby, Trung N. Tran, E. Wang, Todor A Popov, Patrick D. Mitchell, P. Pfeffer, Roy A. Pleasants, R. Katial, M. Koh, A. Bourdin, F. Schleich, J. Máspero, M. Hew, Matthew J. Peters, David J. Jackson, G. Christoff, L. Perez-de-Llano, Iván Chérrez-Ojeda, João A. Fonseca, R. Costello, C. Torres-Duque, P. Kuna, A. Menzies-Gow, N. Stjepanovic, Peter G. Gibson, P. Pitrez, C. Bergeron, C. Porsbjerg, C. Taillé, C. Taube, Nikolaos G. Papadopoulos, A. Papaioannou, Sundeep Salvi, G. Canonica, E. Heffler, T. Iwanaga, M. Al‐Ahmad, Sverre Lehmann, R. Al-Lehebi, B. G. Cosio, D. Perng, B. Mahboub, L. Heaney, P. Patel, N. Lugogo, M. Wechsler, L. Bulathsinhala, V. Carter, K. Fletton, David L Neil, G. Scelo, David B. Price   +54 more
semanticscholar   +1 more source

Health outcome of older hospitalized patients in internal medicine environments evaluated by Identification of Seniors at Risk (ISAR) screening and geriatric assessment

BMC Geriatrics, 2019
Background Hospitals are in need of valid and economic screening and assessment tools that help identifying older patients at risk for complications which require intensified support during their hospital stay.
Anne-Carina Scharf, Janine Gronewold, Christian Dahlmann, Jeanina Schlitzer, Andreas Kribben, Guido Gerken, Tienush Rassaf, Christoph Kleinschnitz, Richard Dodel, Helmut Frohnhofen, Dirk M. Hermann   +10 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

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

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

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

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

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