Open AccessA Fast Back Projection Algorithm for Spotlight Mode Bi-SAR Imaging
Author(s) -
Wenbin Zhang,
Yunkai Deng,
Yu Wang
Publication year - 2013
Publication title -
leida xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.301
H-Index - 13
ISSN - 2095-283X
DOI - 10.3724/sp.j.1300.2013.13031
Subject(s) - back projection , computer science , mode (computer interface) , artificial intelligence , algorithm , computer graphics (images) , computer vision , operating system
A Fast Back Projection (FBP) algorithm for spotlight mode Bistatic Synthetic Aperture Radar (Bi-SAR) was presented. Sync channel signal from land receiver was taken as matched filter for echo signal in the phase of range compression, and the secondary phase calibration decreased the approximation error effects for FBP algorithm in the phase of azimuth compression. Computational complexity of this algorithm was O(N2.5 ). In addition, this algorithm was validated on Graphic Processing Unit (GPU) by simulation data and measured data