Results 31 to 40 of about 18,766,476 (140)

High-Resolution and Wide-Swath 3D Imaging for Urban Areas Based on Distributed Spaceborne SAR

open access: yesRemote Sensing, 2023
Tomographic synthetic aperture radar (TomoSAR) obtains elevation resolution by adding multiple baselines successively in the direction perpendicular to the line of sight, thereby realizing three-dimensional (3D) reconstruction of complex scenes and ...
Yaqian Yang   +5 more
doaj   +1 more source

High-resolution wide-swath SAR processing with compressed sensing

open access: yes, 2022
S.3830-3833This paper derives a signal processing method based on compressed sensing (CS) for multi-channel high-resolution wide-swath (HRWS) synthetic aperture radars (SARs) and discusses the applicability of CS for reconstructing the SAR image from ...
Cerutti-Maori, D.   +3 more
core   +1 more source

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

Motion Phase Compensation Methods for Azimuth Ambiguity Suppression in HRWS SAR

open access: yesRemote Sensing, 2021
The azimuth multi-channel synthetic aperture radar (SAR) is widely used in marine observation, because of its excellent imaging ability of high-resolution and wide-swath (HRWS) signals.
Junying Yang   +4 more
doaj   +1 more source

Multi-Layer Overlapped Subaperture Algorithm for Extremely-High-Squint High-Resolution Wide-Swath SAR Imaging with Continuously Time-Varying Radar Parameters

open access: yesRemote Sensing, 2022
Extremely-high-squint (EHS) geometry of the traditional constant-parameter synthetic aperture radar (SAR) induces non-orthogonal wavenumber spectrum and hence the distortion of point spread function (PSF) in focused images.
Yan Wang   +4 more
doaj   +1 more source

A Novel Compressive Sensing-Based Multichannel HRWS SAR Imaging Technique for Moving Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
When high-resolution wide-swath (HRWS) multichannel synthetic aperture radar (MC-SAR) system is used for ocean observation, vast amount of redundant data is generated, significantly limiting its applications.
Shaojie Li   +4 more
doaj   +1 more source

Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging [PDF]

open access: yes, 2009
Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the earth. However, conventional SAR systems are not capable to fulfill the increasing demands for im-proved spatial resolution and wider swath coverage.
Alberto Moreira   +5 more
core   +1 more source

A Joint Azimuth Multichannel Cancellation (JAMC) Antibarrage Jamming Scheme for Spaceborne SAR

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The azimuth multichannel synthetic aperture radar (SAR) increases the swath width by reducing the pulse repetition frequency (PRF), thus providing an effective scheme for realizing high-resolution and wide-swath (HRWS) imaging simultaneously.
Shuohan Cheng   +6 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

MIMO SAR Imaging for Wide‐Swath Based on Compressed Sensing

open access: yesMathematical Problems in Engineering, Volume 2017, Issue 1, 2017., 2017
To reduce the amount of data to be stored and software/hardware complexity and suppress range ambiguity, a novel MIMO SAR imaging based on compressed sensing is proposed under the condition of wide‐swath imaging. Random phase orthogonal waveform (RPOW) is designed for MIMO SAR based on compressed sensing (CS).
Feng Liu   +3 more
wiley   +1 more source

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