Results 51 to 60 of about 156 (95)

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

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

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

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

A review of orthogonal waveforms for spaceborne Multiple-Input Multiple-Output Synthetic Aperture Radar [PDF]

Advances in Radio Science
Spaceborne Multiple-Input Multiple-Output Synthetic Aperture Radar (MIMO-SAR) overcomes fundamental shortcomings of state-of-the-art SAR, such as the trade-off between swath width and spatial resolution, and offers a greater agility of the antenna beam ...
T. Rommel, M. Younis, M. Chandra
doaj   +1 more source

Study of Effect of Raw Data Compression on Azimuth Multi-channel SAR System

Leida xuebao, 2017
An effective way to achieve High Resolution and Wide Swath (HRWS) imaging capability is the multi-channel technique in azimuth. Improved resolution and swath can dramatically increase the volume of echo data in the SAR system.
Zhao Yao, Deng Yunkai, Wang Yu, Li Ning, Wang Wei   +4 more
doaj   +1 more source

A High-Resolution, Wide-Swath SAR Imaging System Based on Tandem SAR Satellites. [PDF]

Sensors (Basel), 2022
Sun L, Li C.
europepmc   +1 more source