A 2-D space-variant chirp scaling algorithm for GEO SAR

G Sun, J Chen, J Yang, M Xing - EUSAR 2014; 10th European …, 2014 - ieeexplore.ieee.org
A space-variant chirp scaling algorithm (SV-CSA) based on the range cell migration (RCM)
equalization and azimuth subband synthesis has been studied to process simulated …

A 2-D space-variant chirp scaling algorithm based on the RCM equalization and subband synthesis to process geosynchronous SAR data

GC Sun, M Xing, Y Wang, J Yang… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
A space-variant chirp scaling algorithm based on the range cell migration (RCM)
equalization and azimuth subband synthesis has been studied to process simulated …

An improved CS algorithm based on the curved trajectory in geosynchronous SAR

C Hu, Z Liu, T Long - IEEE Journal of selected topics in applied …, 2012 - ieeexplore.ieee.org
In Geosynchronous (GEO) Synthetic Aperture Radar (SAR), the linear trajectory model fits
the actual slant range history in a poor approximation. For example, when the satellite …

Modeling and processing of two-dimensional spatial-variant geosynchronous SAR data

D Li, M Wu, Z Sun, F He, Z Dong - IEEE Journal of Selected …, 2015 - ieeexplore.ieee.org
Imaging of spatial-variant geosynchronous synthetic aperture radar (GEO SAR) in the L
band with long integration time is discussed. To compensate for spatial variances in both …

An improved nonlinear chirp scaling algorithm based on curved trajectory in geosynchronous SAR

C Hu, T Long, Y Tian - Progress In Electromagnetics Research, 2013 - jpier.org
Geosynchronous synthetic aperture radar (GEO SAR) has the characteristics of long
aperture time and large imaging area. Therefore, the conventional imaging algorithm in Low …

Fourth-order chirp scaling imaging algorithm for Geosynchronous Synthetic Aperture Radar

J Geng, Z Yu, P Lin, P Xiao, C Li - EUSAR 2018; 12th European …, 2018 - ieeexplore.ieee.org
The curved relative trajectories between Geosynchronous SAR and targets cause spatial
variance in echoes complicated to deal with. A modified polynomial slant range model with …

A refined chirp scaling algorithm for high-resolution spaceborne SAR based on the fourth-order model

P Wang, Y Han, J Chen, Z Cui… - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
With the resolution of SAR developing continually, it is found that in the process of image
processing, using equivalent squint range model would bring large phase error. So using …

A new subaperture chirp scaling imaging algorithm for spaceborne spotlight SAR

J Sun, Z Yang, W Hong, S Mao - … International Conference on …, 2007 - spiedigitallibrary.org
In order to overcome the azimuth spectrum folding occurrence in the spotlight imaging mode
of the high resolution spaceborne Synthetic Aperture Radar (SAR), we presented a new …

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 …

Chirp scaling algorithm for GEO SAR based on fourth-order range equation

M Bao, MD Xing, YC Li - Electronics letters, 2012 - IET
For a synthetic aperture radar (SAR) onboard a geosynchronous-earth-orbit (GEO) satellite,
the track can be curvilinear. Thus, the validity of imaging algorithms based on the …