Title :
Phase reconstruction/unwrapping from amplitude for diffracted waves using a perturbation solution for the wave equation
Author :
Soumekh, Mehrdad
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Amherst, NY, USA
fDate :
7/1/1988 12:00:00 AM
Abstract :
A scheme is presented to recover the phase of a diffracted wave from the knowledge of its amplitude. The Helmholtz wave equation is utilized to relate the phase and amplitude of a diffracted wave; this relationship is the basis of a perturbation solution for the phase function. Signal processing issues associated with the implementation of the scheme are discussed. Applications of the method in certain phase reconstruction/unwrapping problems are shown
Keywords :
electromagnetic wave diffraction; perturbation techniques; signal processing; Helmholtz wave equation; amplitude; diffracted waves; perturbation solution; phase; phase reconstruction; phase unwrapping; signal processing; wave equation; Acoustic imaging; Acoustic scattering; Aging; Diffraction; Image reconstruction; Partial differential equations; Signal processing; Signal processing algorithms; Tomography; Wave functions;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
