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Slant plane CSAR processing using Householder transform
Jehanzeb Burki1, Christopher F Barnes
1Department of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Ga 30332, USA. jehanzeb.ahmad@gatech.edu
Abstract:
Fourier analysis-based focusing of synthetic aperture radar (SAR) data collected during circular flight path is a recent advancement in SAR signal processing. This paper uses the Householder transform to obtain a ground plane circular SAR (CSAR) signal phase history from the slant plane CSAR phase history by inverting the linear shift-varying system model, thereby circumventing the need for explicitly computing a pseudo-inverse. The Householder transform has recently been shown to have improved error bounds and stability as an underdetermined and ill-conditioned system solver, and the Householder transform is computationally efficient.
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