Title :
Bistatic Synthetic Aperture Radar Imaging for Arbitrary Flight Trajectories
Author :
Yarman, Can Evren ; Yazici, Birsen ; Cheney, Margaret
Author_Institution :
WesternGeco-Schlumberger, Houston
Abstract :
In this paper, we present an analytic, filtered backprojection (FBP) type inversion method for bistatic synthetic aperture radar (BISAR). We consider a BISAR system where a scene of interest is illuminated by electromagnetic waves that are transmitted, at known times, from positions along an arbitrary, but known, flight trajectory and the scattered waves are measured from positions along a different flight trajectory which is also arbitrary, but known. We assume a single-scattering model for the radar data, and we assume that the ground topography is known but not necessarily flat. We use microlocal analysis to develop the FBP-type reconstruction method. We analyze the computational complexity of the numerical implementation of the method and present numerical simulations to demonstrate its performance.
Keywords :
computational complexity; electromagnetic wave scattering; image reconstruction; numerical analysis; radar imaging; synthetic aperture radar; bistatic synthetic aperture radar imaging for arbitrary flight trajectories; computational complexity; electromagnetic waves; filtered backprojection; ground topography; inversion method; microlocal analysis; numerical simulations; single scattering model; Computational complexity; Electromagnetic measurements; Electromagnetic scattering; Layout; Performance analysis; Position measurement; Radar polarimetry; Radar scattering; Reconstruction algorithms; Surfaces; Bistatic; filtered backprojection; microlocal analysis; radar; synthetic aperture imaging; Aircraft; Algorithms; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Radar; Reproducibility of Results; Sensitivity and Specificity;
Journal_Title :
Image Processing, IEEE Transactions on
DOI :
10.1109/TIP.2007.911812