Phase Reconstruction from Amplitude Based on the Rytov Transformation of the Wave Equation
This paper addresses the problem of phase reconstruction from amplitude for a diffracted wave. We utilize the Rytov transformation of the Helmholtz wave equation to relate the phase and amplitude functions; this results in two partial differential equations. We show that each of these PDEs yields a perturbation scheme to reconstruct the phase from amplitude. We also examine issues involved with the implementation of these methods in practice.
KeywordsCoherence Refraction Acoustics Amplit
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