Speckle processing method for synthetic-aperture-radar phase correction

Details Speckle processing method for synthetic-aperture-radar phase correction Speckle processing method for synthetic-aperture-radar phase correction

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989optl...14....1e&link_type=abstract

Optics Letters (ISSN 0146-9592), vol. 14, Jan. 1, 1989, p. 1-3.

Astronomy and Astrophysics

Astronomy

15

Image Processing, Phase Error, Radar Data, Signal Transmission, Speckle Patterns, Synthetic Aperture Radar, Algorithms, High Resolution, Radio Astronomy, Tomography

Scientific paper

Uncompensated phase errors present in synthetic-aperture-radar data can have a disastrous effect on reconstructed image quality. A new iterative algorithm is presented that holds promise of being a robust estimator and corrector for arbitrary phase errors. The algorithm is similar in many respects to speckle processing methods currently used in optical astronomy. Its ability to focus scenes containing large amounts of phase error regardless of the phase-error structure or its source is demonstrated. The algorithm works extremely well in both high and low signal-to-clutter conditions without human intervention.

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