Anti aliasing algorithm based on sub aperture stitching

D Li - … Conference on Algorithm, Imaging Processing, and …, 2024 - spiedigitallibrary.org
High resolution synthetic aperture radar system will produce aliasing problem in the sliding
spotlight mode, we propose a solution based on sub-apertures splice to solving the …

Novel approach based on deramping technique for squinted sliding spotlight SAR imaging

Y Mo, H Yan, B Zhao - Journal of Electronics (China), 2013 - Springer
This paper investigates a novel approach based on the deramping technique for squinted
sliding spotlight Synthetic Aperture Radar (SAR) imaging to resolve the azimuth spectrum …

Aperture weighting technique for video synthetic aperture radar

RW Hawley, WL Garber - Algorithms for Synthetic Aperture …, 2011 - spiedigitallibrary.org
We present a technique for aperture weighting for use in video synthetic aperture radar
(SAR). In video SAR the aperture required to achieve the desired cross range resolution …

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 …

Motion correction in synthetic aperture radar using subaperture techniques

Z Zheng, X Liu, Z Zhou - 2004 IEEE International Conference …, 2004 - ieeexplore.ieee.org
Motion correction is required in airborne synthetic aperture radar to generate high quality
images. The paper proposes a new motion compensation method based on subaperture …

Highly efficient synthetic aperture radar processing system for airborne sensors using CPU+ GPU architecture

Z Wu, Y Liu, L Zhang, N Li, K Du… - Journal of Applied …, 2015 - spiedigitallibrary.org
A comprehensive and effective parallel airborne synthetic aperture radar (SAR) processing
system using the architecture of central processing units (CPU) and graphical processing …

Processing of sliding spotlight SAR data using azimuth frequency de-ramping

X Jia, Y Deng, W Xu, J Feng - 8th European Conference on …, 2010 - ieeexplore.ieee.org
Standard sliding spotlight imaging algorithms are inefficient due to the additional processing
to overcome the azimuth spectra aliasing. In this paper, based on azimuth frequency de …

Precise frequency division algorithm for residual aperture‐variant motion compensation in synthetic aperture radar

Q Lu, P Huang, Y Gao, X Liu - Electronics Letters, 2019 - Wiley Online Library
The effects of complicated motion error on synthetic aperture radar have been analysed. A
precise frequency‐division is proposed based on the precise angle‐frequency relation. The …

A novel data preprocessing method for resolving doppler ambiguity of spaceborne spotlight SAR

W Wang, X Ma - 2012 2nd International Conference on Remote …, 2012 - ieeexplore.ieee.org
This paper presents a novel data preprocessing method for resolving Doppler ambiguity of
spaceborne spotlight synthetic aperture radar. The new method enhances the azimuth …

A modified version of the mosaic phase gradient autofocus

S Leier, M Kronig, AM Zoubir - 21st European Signal …, 2013 - ieeexplore.ieee.org
High resolution radar and sonar images can be constructed using either spotlight or
stripmap synthetic aperture systems. In the presence of residual phase errors, the respective …