Phase-gradient algorithm as an optimal estimator of the phase derivative
- Sandia National Laboratories, Albuquerque, New Mexico 87185 (US)
The phase-gradient algorithm represents a powerful new signal-processing technique with applications to aperture-synthesis imaging. These include, for example, synthetic-aperture-radar phase correction and stellar-image reconstruction. The algorithm combines redundant information present in the data to arrive at an estimate of the phase derivative. We show that the estimator is in fact a linear, minimum-variance estimator of the phase derivative.
- OSTI ID:
- 5361890
- Journal Information:
- Optics Letters; (USA), Vol. 14:20; ISSN 0146-9592
- Country of Publication:
- United States
- Language:
- English
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