Results 41 to 50 of about 3,054,526 (166)

A Full-Aperture Frequency Scaling Algorithm for Processing Dechirped Sliding Spotlight SAR Data

open access: yesIEEE Access, 2023
This paper proposes a full-aperture method for processing sliding spotlight synthetic aperture radar (SAR) data with dechirp-on-receive. The frequency scaling algorithm (FSA) efficiently processes the dechirped signals because the range cell migration ...
Young-Geun Kang, Seong-Ook Park
doaj   +1 more source

High Precision Antenna Characterisation for Broadband Synthetic Aperture Radar Processing [PDF]

open access: yes, 2014
The airborne F-SAR sensor\cite{fsar}, developed and operated by the DLR-HR institute, acquires very high resolution, fully polarimetric synthetic aperture radar (SAR) data in multiple frequency bands in addition to providing a number of ...
Bernd Gabler   +5 more
core   +1 more source

A Novel Strategy for Radar Imaging Based on Compressive Sensing [PDF]

open access: yes, 2010
Radar data have already proven to be compressible with no significant losses for most of the applications in which it is used. In the framework of information theory, the compressibility of a signal implies that it can be decomposed onto a reduced set of
López-Dekker, Paco   +8 more
core   +1 more source

Efficient payload communications for IoT-enabled ViSAR vehicles using discrete cosine transform-based quasi-sparse bit injection

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
High-performance remote sensing payload communication is a vital problem in air-borne and space-borne surveillance systems. Among different remote sensing imaging systems, video synthetic aperture radar (ViSAR) is a new technology with lots of principal ...
Mohammad R. Khosravi, Sadegh Samadi
doaj   +1 more source

Novel approach for shipborne‐passive bistatic imaging with DVB‐T signals based on MIAA–RID technique

open access: yesIET Radar, Sonar & Navigation, 2022
The shipborne‐passive bistatic inverse synthetic aperture radar system with digital video broadcasting terrestrial (DVB‐T) signals is very important in the fields of radar imaging, but it suffers from the problems of grating lobes caused by the spectral ...
Yong Wang   +3 more
doaj   +1 more source

Smart Multi-Aperture Radar Techniques for Spaceborne Remote Sensing [PDF]

open access: yes, 2008
Data compression is crucial for modern synthetic aperture radar systems where high resolution or large coverage may result in huge amounts of raw data.
Bordoni, Federica   +7 more
core   +1 more source

A Novel Generation Method of High Quality Video Image for High Resolution Airborne ViSAR

open access: yesRemote Sensing, 2021
Video synthetic aperture radar (ViSAR) can provide long-time surveillance of a region of interest (ROI), which is one of the hotspot directions in the SAR field. In order to better display ViSAR, a high resolution and high frame rate are needed.
Jingwei Chen   +5 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

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

Video SAR Moving Target Tracking Using Joint Kernelized Correlation Filter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Video synthetic aperture radar (ViSAR) has been found very useful for the surveillance of ground moving targets. The target energy can be utilized for ground moving target tracking, while the dynamic shadows of moving targets enable an alternative ...
Chao Zhong, Jinshan Ding, Yuhong Zhang
doaj   +1 more source

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