Results 61 to 70 of about 2,086,551 (203)

3D inverse synthetic aperture radar image quality improvement using sparse signal representation

open access: yesIET Radar, Sonar & Navigation, 2023
Generalisation of one‐dimensional dictionary learning (1DDL) algorithms to Multidimensional (MD) mode and its utilisation in MD data applications, increases the speed and reduces the computational complexity.
Ali Mehrpooya   +4 more
doaj   +1 more source

Development of a MIMO Radar System Demonstrator - Calibration and Demonstration of First Results [PDF]

open access: yes, 2012
The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirements of next generation systems. In order to cope with the evolution of SAR the design of the new systems will need to meet higher requirements for ...
A. Patyuchenko   +9 more
core   +1 more source

WAH‐i: Optimising microphone array geometry for customised localisation accuracy

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley   +1 more source

Inverse Synthetic Aperture Radar Imaging of Space Objects Using Probing Signal with a Zero Autocorrelation Zone

open access: yesSignals
To obtain radar images of a group of small space objects or to resolve individual elements of complex space objects in near-Earth orbit, a radar system must have high spatial resolution.
Roman N. Ipanov, Aleksey A. Komarov
doaj   +1 more source

Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar [PDF]

open access: yes, 2009
The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica   +4 more
core  

Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]

open access: yes, 2008
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim   +5 more
core   +1 more source

Textile Metamaterials: Design, Fabrication, and Emerging Applications

open access: yesApplied Research, Volume 5, Issue 5, October 2026.
Textile metamaterials combine sub‐wavelength electromagnetic structures with textile architectures, enabling flexible and wearable platforms for wave manipulation. This review highlights their evolution, fabrication strategies, electromagnetic characteristics, and emerging applications, while identifying key challenges and opportunities for next ...
Samanta M. de Holanda   +8 more
wiley   +1 more source

Synthetic aperture sonar imaging using compressive sensing and an ultrasound transducer array [PDF]

open access: yes, 2013
Includes bibliographical references.Compressive sensing (CS) also known as compressive sampling is a technique used to reconstruct or recover the full-length of a signal with only a few non-adaptive measurements.
Jideani, Josiah Chimnanu
core   +1 more source

Fast matrix inversion and determinant computation for Polarimetric Synthetic Aperture Radar [PDF]

open access: yesComputers & Geosciences, 2018
7 pages, 1 ...
Diego F. G. Coelho   +3 more
openaire   +4 more sources

Are Pixel Intensities Proportional To Radar Cross Section In SAR Images? [PDF]

open access: yes, 2012
Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J.   +3 more
core   +1 more source

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