[HTML][HTML] Advanced high-order nonlinear chirp scaling algorithm for high-resolution wide-swath spaceborne SAR

MEN Zhirong, W Pengbo, C Jie, LI Chunsheng… - Chinese Journal of …, 2021 - Elsevier
Abstract Spaceborne Synthetic Aperture Radar (SAR) is a well-established and powerful
imaging technology that can provide high-resolution images of the Earth's surface on a …

A new nonlinear chirp scaling algorithm for high-squint high-resolution SAR imaging

Y Wang, J Li, F Xu, J Yang - IEEE Geoscience and Remote …, 2017 - ieeexplore.ieee.org
Among high-squint high-resolution (HSHR) synthetic aperture radar imaging algorithms,
nonlinear chirp scaling algorithm (NLCSA) and its extensions, such as extended NLCSA …

[HTML][HTML] A Modified Frequency Nonlinear Chirp Scaling Algorithm for High-Speed High-Squint Synthetic Aperture Radar with Curved Trajectory

K Deng, Y Huang, Z Chen, D Fu, W Li, X Tian, W Hong - Remote Sensing, 2024 - mdpi.com
The imaging of high-speed high-squint synthetic aperture radar (HSHS-SAR), which is
mounted on maneuvering platforms with curved trajectory, is a challenging task due to the …

An improved generalized chirp scaling algorithm based on lagrange inversion theorem for high-resolution low frequency synthetic aperture radar imaging

X Chen, T Yi, F He, Z He, Z Dong - Remote Sensing, 2019 - mdpi.com
The high-resolution low frequency synthetic aperture radar (SAR) has serious range-
azimuth phase coupling due to the large bandwidth and long integration time. High …

Higher order nonlinear chirp scaling algorithm for medium Earth orbit synthetic aperture radar

P Wang, W Liu, J Chen, W Yang… - Journal of Applied …, 2015 - spiedigitallibrary.org
Due to the larger orbital arc and longer synthetic aperture time in medium Earth orbit (MEO)
synthetic aperture radar (SAR), it is difficult for conventional SAR imaging algorithms to …

Focusing highly squinted missile-borne SAR data using azimuth frequency nonlinear chirp scaling algorithm

Y Zhang, T Qu - Journal of Real-Time Image Processing, 2021 - Springer
With the development of SAR imaging, the efficiency and rapidity of imaging algorithms have
always been a research direction, and real-time imaging is a reflection of the speed of the …

Wide nonlinear chirp scaling algorithm for spaceborne stripmap range sweep SAR imaging

Y Wang, JW Li, J Yang - IEEE Transactions on Geoscience and …, 2017 - ieeexplore.ieee.org
The spaceborne stripmap range sweep synthetic aperture radar (SS-RSSAR) is a new
concept spaceborne SAR system that images the region of interest (ROI) with ROI-orientated …

A modified fixed-point chirp scaling algorithm based on updating phase factors regionally for spaceborne SAR real-time imaging

Z Ding, F Xiao, Y Xie, W Yu, Z Yang… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
To realize real-time imaging for the spaceborne synthetic aperture radar (SAR) using the
chirp scaling (CS) algorithm, high generation rates of phase factors and heavy computation …

Focusing of wide-swath range sweep SAR with extended wide nonlinear chirp scaling algorithm

K Lv, M Liu, G Li - IEEE Transactions on Geoscience and …, 2023 - ieeexplore.ieee.org
Multichannel, Digital beamforming (DBF)-based high-resolution wide-swath synthetic
aperture radar (HRWS-SAR) is dedicated to acquiring large observation width and high …

Modeling and high-precision processing of the azimuth shift variation for spaceborne HRWS SAR

F He, Q Chen, Z Dong, GH Jin, DN Liang - Science China Information …, 2013 - Springer
One basic assumption for high-efficient SAR imaging algorithms is azimuth-shift-invariance
of SAR data. The new spaceborne high-resolution wide-swath (HRWS) SAR generation will …