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.