Results 61 to 70 of about 18,574,779 (140)

An Improved Imaging Algorithm for HRWS Space-Borne SAR Data Processing Based on CVPRI

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
In space-borne synthetic aperture radar (SAR), the sliding spotlight mode can acquire images with both high-resolution and wide-swath in azimuth direction.
Yanan Guo, Pengbo Wang, Xinkai Zhou, Tao He, Jie Chen   +4 more
doaj   +1 more source

Ultra Wide Swath Imaging With Multi-Channel SAR Systems [PDF]

, 2008
Multi-channel radar systems allow for overcoming the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth
Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard   +4 more
core  

Mitigation of Suppressive Interference in AMPC SAR Based on Digital Beamforming

Remote Sensing
Multichannel Synthetic Aperture Radar (MC-SAR) systems, such as Azimuth Multi-Phase Centre (AMPC) SAR, provide an effective solution for achieving high-resolution wide-swath (HRWS) imaging by reducing the pulse repetition frequency (PRF) to increase the ...
Zhipeng Xiao, Feng He, Zaoyu Sun, Zehua Zhang   +3 more
doaj   +1 more source

Ultra-Wide Swath SAR Imaging With Continuous PRF Variation [PDF]

, 2010
Innovative multi-channel synthetic aperture radar (SAR) concepts enable high-resolution wide-swath imaging, but the antenna length typically restricts the achievable swath width.
Gebert, Nicolas, Krieger, Gerhard
core  

A Novel Error Correction Method for Airborne HRWS SAR Based on Azimuth-Variant Attitude and Range-Variant Doppler Domain Pattern

Remote Sensing
In high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) imaging, the azimuth multi-channel technique effectively suppresses azimuth ambiguity, serving as a reliable approach for achieving wide-swath imaging.
Yihao Xu, Fubo Zhang, Longyong Chen, Yangliang Wan, Tao Jiang   +4 more
doaj   +1 more source

The Staggered SAR concept: Imaging a wide continuous swath with high resolution [PDF]

, 2013
Staggered SAR is an innovative synthetic aperture radar (SAR) concept, based on the continuous variation of the pulse repetition interval (PRI). This concept allows high-resolution imaging of a wide continuous swath without the need for a long antenna ...
Villano, Michelangelo, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

A Novel Antibarrage Jamming Method for Multichannel SAR Systems Using Correlation Filtering

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-resolution wide-swath (HRWS) imaging in azimuth multichannel synthetic aperture radar (MC-SAR) is critical for remote sensing, yet electromagnetic jamming severely degrades image quality.
Hongtao Zhan, Shuangxi Zhang, Jin Min, Shaojie Li, Yan Feng, Shaohui Mei   +5 more
doaj   +1 more source

A Robust Minimum-Entropy-Based Time-Domain Algorithm for Azimuth Multichannel HRWS SAR Imaging

IEEE Access
Azimuth multichannel (AMC) synthetic aperture radar (SAR) system, utilizing digital beam forming (DBF) processing, is capable of achieving high-resolution and wide-swath (HRWS) focusing, presenting significant potential for Earth observation ...
Yuekun Wang, Long Zhuang
doaj   +1 more source

A 3D Blur Suppression Method for High-Resolution and Wide-Swath Blurred Images Based on Estimating and Eliminating Defocused Point Clouds

Remote Sensing
Traditional single-channel Synthetic Aperture Radar (SAR) cannot achieve high-resolution and wide-swath (HRWS) imaging due to the constraint of the minimum antenna area.
Yuling Liu, Fubo Zhang, Longyong Chen, Tao Jiang   +3 more
doaj   +1 more source

High-Precision HRWS SAR Phase Error Estimation with Inaccurate Baseline: A Joint-Pixel-Based Image Subspace Approach

Remote Sensing
HRWS (high resolution and wide swath, HRWS) SAR always suffers channel phase error in the multichannel reconstruction stage and results in a lower imaging quality. The image domain error estimation method can achieve superior performance by utilizing the
Jixia Fan, Quan Chen, Jixiang Xiang, Xiaojie Ding, Wenxin Zhao, Guangcai Sun   +5 more
doaj   +1 more source