Results 31 to 40 of about 17,640,035 (138)

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

High-Resolution and Wide-Swath SAR Imaging with Space–Time Coding Array

open access: yesRemote Sensing, 2023
To achieve high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) images, this paper focuses on resolving the problem of separating range-ambiguous echoes with the space–time coding (STC) array.
Kun Yu, Shengqi Zhu, Lan Lan, Biao Yang
doaj   +1 more source

Digital Beamforming for HRWS-SAR Imaging - System Design, Performance and Optimization Strategies [PDF]

open access: yes, 2006
Multi-aperture synthetic aperture radar (SAR) systems in combination with an appropriate coherent processing of the individual aperture signals enable high resolution wide swath (HRWS) SAR imaging.
Moreira, Alberto   +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

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

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

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

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

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

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