A unified focusing algorithm for several modes of SAR based on FrFT

GC Sun, M Xing, XG Xia, J Yang… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
Many imaging algorithms for different modes, such as, stripmap synthetic aperture radar
(SAR), spotlight SAR, sliding spotlight SAR, and terrain observation by progressive scans …

Ground moving target refocusing in SAR imagery based on RFRT-FrFT

P Huang, XG Xia, Y Gao, X Liu, G Liao… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, a new algorithm is presented to image ground moving targets in a synthetic
aperture radar (SAR) system based on range frequency reversal transform-fractional Fourier …

Ground moving target refocusing in SAR imagery using scaled GHAF

P Huang, XG Xia, G Liao, Z Yang… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, a new method is proposed to refocus a ground moving target in synthetic
aperture radar imagery. In this method, range migration is compensated in the 2-D …

A new chirp scaling algorithm for highly squinted missile-borne SAR based on FrFT

S Chen, S Zhang, H Zhao… - IEEE Journal of Selected …, 2014 - ieeexplore.ieee.org
Since synthetic aperture technology was employed in radar signal processing, a lot of
imaging algorithms have been developed for highly squinted synthetic aperture radar (SAR) …

An efficient approach with scaling factors for TOPS-mode SAR data focusing

W Xu, P Huang, Y Deng, J Sun… - IEEE Geoscience and …, 2011 - ieeexplore.ieee.org
The Terrain Observation by Progressive Scans (TOPS) mode is a novel spaceborne imaging
mode which can be used to obtain wide-swath coverage and overcome major drawbacks in …

An efficient and accurate GB-SAR imaging algorithm based on the fractional Fourier transform

L Zou, M Sato - IEEE Transactions on Geoscience and Remote …, 2019 - ieeexplore.ieee.org
In this paper, an efficient and accurate imaging algorithm is presented for Ground-Based
Synthetic Aperture Radar (GB-SAR) or other radar systems that could be formed by a …

TOPS-mode raw data processing using chirp scaling algorithm

W Xu, P Huang, R Wang, Y Deng… - IEEE Journal of Selected …, 2013 - ieeexplore.ieee.org
This paper presents four imaging approaches for terrain observation by progressive scans
(TOPS)-mode SAR focusing, all of which take advantage of modified chirp scaling (CS) …

Imaging and locating multiple ground moving targets based on keystone transform and FrFT for single channel SAR system

H Yi, C Fan, J Yang, X Huang - 2009 2nd Asian-Pacific …, 2009 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) imaging techniques have been successfully developed for
static ground targets, but if the moving target returns are processed in the conventional …

A novel imaging algorithm for focusing high-resolution spaceborne SAR data in squinted sliding-spotlight mode

J Chen, H Kuang, W Yang, W Liu… - IEEE Geoscience and …, 2016 - ieeexplore.ieee.org
To process squinted sliding-spotlight synthetic aperture radar data, the azimuth
preprocessing step based on the linear range walk correction (LRWC) and derotation …

Spectrum-oriented FFBP algorithm in quasi-polar grid for SAR imaging on maneuvering platform

L Yang, L Zhao, S Zhou, G Bi… - IEEE Geoscience and …, 2017 - ieeexplore.ieee.org
In this letter, a new spectrum-oriented fast factorized backprojection (FFBP) algorithm is
proposed for synthetic aperture radar (SAR) imaging on a maneuvering platform …