Range Migration Subaperture Algorithm for spotlight SAR in near space

P Zheng, X Jing, S Sun, H Huang - 2012 3rd IEEE International …, 2012 - ieeexplore.ieee.org
Spotlight Synthetic Aperture Radar (SAR) is an imaging mode with high resolution and
widely used in spaceborne and airborne platforms as well as the platform in near space-a …

A deramping based omega-k algorithm for wide scene spotlight SAR

T Long, W Junjie, H Yulin… - … Conference on Systems …, 2012 - ieeexplore.ieee.org
Spotlight SAR accumulates large Doppler bandwidth to improve azimuth resolution. On
condition of certain pulse reputation frequency (PRF), Doppler bandwidth accumulates at …

Modified imaging method for high resolution wide swath spaceborne SAR based on nonuniform azimuth sampling

Z Men, P Wang, C Li - 2015 IEEE 5th Asia-Pacific Conference …, 2015 - ieeexplore.ieee.org
With the increasing demands for higher resolution and wider swath in many applications of
Synthetic Aperture Radar (SAR), sliding spotlight mode has been presented. Here the …

Extension of range migration algorithm for airborne spotlight SAR with velocity variation

HS Shin, JH Jeon, HJ Lee… - 2007 1st Asian and Pacific …, 2007 - ieeexplore.ieee.org
To obtain the SAR images with high quality and the fast processing time in the airborne
spotlight SAR with velocity variation, we propose a modified range migration algorithm …

A scanning order design method of jumping spotlight SAR to simplify imaging processing

H Xu, Z Xiao, J Gao, C Li, Z Yu - 2012 IEEE International …, 2012 - ieeexplore.ieee.org
Spotlight synthetic aperture radar (SAR) can obtain high resolution SAR image but the
observation area is restricted. This paper presents a new imaging mode named jumping …

GPU-based FFBP algorithm for high-resolution spotlight SAR imaging

B Ge, L Chen, D An, Z Zhou - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
This paper presents the fast factorized back projection (FFBP) algorithm for high-resolution
spotlight synthetic aperture radar (SAR) data processing. To improve the imaging efficiency …

Unknown target motion compensation for spotlight-mode synthetic aperture radar imagery

Y Song, SD Blostein - Proceedings 2000 International …, 2000 - ieeexplore.ieee.org
In spotlight-mode synthetic aperture radar (SAR), a long integration time is required to
achieve a high cross-range resolution. Unfortunately, target motion during this long …

A modified range migration algorithm for airborne squint-mode spotlight SAR imaging

A Daoxiang, H Xiaotao, J Tian… - 2010 IEEE Radar …, 2010 - ieeexplore.ieee.org
Due to the reference signal based on the fixed reference range is used in the range
migration (RM) algorithm, the RM algorithm is not available to process an airborne squint …

High-resolution slide spotlight SAR imaging by BP algorithm and heterogeneous parallel implementation

T Jiangwen, D Yunkai, W Robert, Z Shuo, L Ning - 雷达学报, 2017 - radars.ac.cn
High-resolution synthetic aperture radar presents a significant challenge to imaging
algorithms and computing power. Slide spotlight is an important mode that has both high …

A new subpatch focusing algorithm for spotlight sar processing of large scenes

S Paker, M Kartal, S Kent - 8th European Conference on …, 2010 - ieeexplore.ieee.org
Space-variant phase error is the source of defocusing in spotlight SAR image for large
scenes. The well-known autofocus techniques cannot easily overcome this type of error …