Results 21 to 30 of about 50,281 (233)

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   +4 more sources

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  

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

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

Uncertainty, entropy and decoherence of the damped harmonic oscillator in the Lindblad theory of open quantum systems [PDF]

open access: yes, 1999
In the framework of the Lindblad theory for open quantum systems, expressions for the density operator, von Neumann entropy and effective temperature of the damped harmonic oscillator are obtained.
Isar, A.
core   +3 more sources

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

Reconstruction of target scattering centres based on characteristics analysis of inverse synthetic aperture radar images

open access: yesElectronics Letters, 2023
Due to the aircraft targets’ uncooperative character, acquiring the complete scattering characteristics of enemy aircraft is challenging. An effective reconstruction method of target scattering centres based on characteristics analysis of inverse ...
Hanjie Wu, Yongqiang Cheng, Runming Zou
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

Anomalous sea-ice reduction in the Eurasian Basin of the Arctic Ocean during summer 2010 [PDF]

open access: yes, 2012
Special Issue: The Second International Symposium on the Arctic Research (ISAR ...
Aagaard   +30 more
core   +1 more source

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