High-resolution real-time imaging processing for spaceborne spotlight SAR with curved orbit via subaperture coherent superposition in image domain

Y Liu, GC Sun, L Guo, M Xing, H Yu… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
With the increasing of application requirements, the high-resolution real-time imaging
processing of the spaceborne spotlight synthetic aperture radar (SAR) has been developed …

[HTML][HTML] Focusing of Ultrahigh Resolution Spaceborne Spotlight SAR on Curved Orbit

Y Qian, D Zhu - Electronics, 2019 - mdpi.com
Aiming to acquire ultrahigh resolution images, algorithms for spaceborne spotlight synthetic
aperture radar (SAR) imaging typically confront challenges of curved orbit and azimuth …

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

Y Guo, P Wang, X Zhou, T He… - IEEE Journal of Selected …, 2022 - ieeexplore.ieee.org
In space-borne synthetic aperture radar (SAR), the sliding spotlight mode can acquire
images with both high-resolution and wide-swath in azimuth direction. Due to the significant …

Omega-K algorithm for spaceborne spotlight SAR imaging

HS Shin, JT Lim - IEEE Geoscience and Remote Sensing …, 2011 - ieeexplore.ieee.org
Since the spaceborne spotlight synthetic aperture radar (SAR) has the long slant range and
the high altitude, it generates the curved flight path due to the orbit curvature effect and the …

[HTML][HTML] Real-Time Imaging Processing of Squint Spaceborne SAR with High-Resolution Based on Nonuniform PRI Design

Y Jin, B Liang, J Chen, Y Xiong, M Xiong - Remote Sensing, 2022 - mdpi.com
The real-time imaging research of squint spaceborne synthetic aperture radar (SAR) with
high resolution has significant value in both military and civil fields, which makes it a hot …

A real-time imaging processing method based on modified RMA with sub-aperture images fusion for spaceborne spotlight SAR

F Zhou, J Yang, G Sun, J Zhang - IGARSS 2020-2020 IEEE …, 2020 - ieeexplore.ieee.org
The small satellite SAR has received increasing attention due to its flexibility and low cost.
But limited by the data transmission technology, real-time transmission of a large amount of …

[HTML][HTML] A modified Cartesian factorized backprojection algorithm integrating with non-start-stop model for high resolution SAR imaging

D Liang, H Zhang, T Fang, H Lin, D Liu, X Jia - Remote Sensing, 2020 - mdpi.com
High resolution synthetic aperture radar (SAR) imaging has extensive application value
especially in military reconnaissance and disaster monitoring. The motion of the satellite …

A modified extended wavenumber-domain algorithm for ultra-high resolution spaceborne spotlight SAR data processing

Y Gao, D Liang, T Fang, ZX Zhou… - IGARSS 2020-2020 …, 2020 - ieeexplore.ieee.org
For ultra-high resolution spaceborne spotlight synthetic aperture radar data processing, an
imaging algorithm is proposed in this paper, which takes into account the variation of the …

Processing of very high resolution GF-3 SAR spotlight data with non-start–stop model and correction of curved orbit

D Liang, H Zhang, T Fang, Y Deng… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
A novel imaging algorithm is presented in this article for focusing the very high resolution
spaceborne synthetic aperture radar (SAR) data of spotlight mode. The long synthetic …

Focusing of maneuvering high-squint-mode SAR data based on equivalent range model and wavenumber-domain imaging algorithm

Z Li, J Chen, W Du, B Gao, D Guo… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
Due to the complexity of high-squint synthetic aperture radar (SAR) mounted on
maneuvering platforms, the traditional geometric model and imaging algorithms cannot be …