DocumentCode
2204588
Title
An N2.5 back-projection algorithm for SAR imaging
Author
Shao, Yunfeng ; Wang, Robert ; Deng, Yunkai ; Liu, Yue ; Chen, Runpu ; Liu, Gang
Author_Institution
Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China
fYear
2012
fDate
22-27 July 2012
Firstpage
2113
Lastpage
2116
Abstract
In this paper, a modified fast back projection (FBP) algorithm is proposed for Synthetic Aperture Radar (SAR) imaging. The azimuth compression of the proposed FBP is divided into sub-image process and finial image process. The secondary phase correction is used to reduce the error cause by approximation before the finial image process. The interlace sub-image grid method makes image quality uniform for all the pixel in the finial image. The applicability limitations and the sub-image two dimensions over sample method are presented. The computational complexity of the proposed FBP is O(N2.5). Simulation on GPU is given to verify the proposed method efficacious.
Keywords
computational complexity; data compression; image coding; radar imaging; synthetic aperture radar; FBP algorithm; GPU; N2.5 back-projection algorithm; SAR imaging; azimuth compression; computational complexity; error reduction; fast back projection algorithm; finial image process; image quality; interlace subimage grid method; secondary phase correction; subimage process; synthetic aperture radar imaging; Approximation algorithms; Approximation methods; Azimuth; Computational complexity; Image coding; Imaging; Synthetic aperture radar; FBP; SAR; interlace sub-image grid; secondary phase correction;
fLanguage
English
Publisher
ieee
Conference_Titel
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location
Munich
ISSN
2153-6996
Print_ISBN
978-1-4673-1160-1
Electronic_ISBN
2153-6996
Type
conf
DOI
10.1109/IGARSS.2012.6351088
Filename
6351088
Link To Document