Speckle processing method for synthetic-aperture-radar phase correction

Journal Article · Sun Jan 01 00:00:00 EST 1989 · Opt. Lett.; (United States)

DOI:https://doi.org/10.1364/OL.14.000001· OSTI ID:6610428

Eichel, P H; Ghiglia, D C; Jr, Jakowatz C

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

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• OSTI ID: 6610428
• Journal Information: Opt. Lett.; (United States), Vol. 14:1
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
SYNTHETIC-APERTURE RADAR
CORRECTIONS
IMAGE PROCESSING
ALGORITHMS
EARTH ATMOSPHERE
ERRORS
ITERATIVE METHODS
LIGHT TRANSMISSION
REMOTE SENSING
TURBULENCE
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
PROCESSING
RADAR
RANGE FINDERS
440300* - Miscellaneous Instruments- (-1989)