Algorithms and experimental results in acoutistic tomography using Rytov's approximation

Theoretical, algorithmic and experimental results on the use of Rytov's approximation in acoustic tomography are presented. The approximation error is related to the disturbance size and magnitude. A method of phase unwrapping which is based on a combination of profile to profile phase comparison coupled with some well-known phase unwrapping algorithms used in signal processing is introduced. Frequency and spatial domain reconstructions are compared with respect to computational efficiency and accuracy of interpolation.