A two-dimensional synthetic-aperture-radar (SAR) phase-correction algorithm is described as a natural extension of a one-dimensional technique developed previously. It embodies some similarities of phase-gradient speckle imaging and incorporates improvements in phase estimation. Diffraction-limited performance has been obtained on actual SAR imagery regardless of scene content or phase-error structure. The algorithm is computationally efficient, robust, and easily implemented on a general-purpose computer or special-purpose hardware.
© 1989 Optical Society of America
Dennis C. Ghiglia and Gary A. Mastin, "Two-dimensional phase correction of synthetic-aperture-radar imagery," Opt. Lett. 14, 1104-1106 (1989)