Results 11 to 20 of about 16,275 (181)

Polarimetric ISAR autofocusing

open access: yesIET Signal Processing, 2008
Interest in polarimetric inverse synthetic aperture radar (ISAR) systems has been growing because of their capability to provide extra information about the imaged target compared with single polarisation ISAR systems. Target classification and recognition can be improved by exploiting full polarisation ISAR images.
MARTORELLA, MARCO   +4 more
openaire   +3 more sources

Axial Attitude Estimation of Spacecraft in Orbit Based on ISAR Image Sequence

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Attitude estimation is a significant task for monitoring noncooperative spacecraft in orbit. Inverse synthetic aperture radar (ISAR) is an effective method to obtain the structure, size, and attitude of spacecraft.
Peng Kou   +5 more
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

Three-dimensional ISAR imaging: a review

open access: yesThe Journal of Engineering, 2019
Three-dimensional (3D) inverse synthetic aperture radar (ISAR) imaging has been proven feasible by combining traditional ISAR imaging and interferometry.
Marco Martorella   +3 more
doaj   +1 more source

Adult Severe Asthma Registries: A Global and Growing Inventory

open access: yesPragmatic and Observational Research, 2023
Breda Cushen,1,* Mariko Siyue Koh,2,* Trung N Tran,3 Neil Martin,3,4 Ruth Murray,5 Thendral Uthaman,6 Celine Yun Yi Goh,5,6 Rebecca Vella,7 Neva Eleangovan,5,6 Lakmini Bulathsinhala,5,6 Jorge F Maspero,8,9 Matthew J Peters,10 Florence Schleich,11
Cushen B   +43 more
doaj  

Analog Frequency Tracking Filter

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper propose a new type of analog adaptive filter derived as a generalization of the concept of matched filter. We conceive such a filter to track the instantaneous frequency of frequency modulated signals.
ISAR, A., ISAR, D.
doaj   +1 more source

Prediction of Emergency Department Re-Visits in Older Patients by the Identification of Senior at Risk (ISAR) Screening

open access: yesGeriatrics, 2018
The “Identification of Seniors at Risk” (ISAR) screening is a tool to identify seniors at risk of adverse outcomes. We investigated whether seniors with a positive ISAR screening have an increased risk of Emergency Department (ED) re-visits ...
Ksenija Slankamenac   +4 more
doaj   +1 more source

Comparison of G8 and ISAR Screening Results in Geriatric Urology

open access: yesMedicines, 2021
Background: The G8 and ISAR scores are two different screening tools for geriatric risk factors and frailty. The aim of this study was to compare the G8 and ISAR screening results in a cohort of urogeriatric patients to help clinicians to better ...
Jobar Bouzan   +3 more
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

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

open access: yesJisuanji 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

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