White Holes in the Fresnel Zone Causing Ambiguous First Arrival Time Tomography Interpretation
- 12 December 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (24) , 3219-3222
- https://doi.org/10.1103/physrevlett.73.3219
Abstract
It is shown that complete and precise first arrival time tomography data are not capable of uniquely reconstructing certain realistic velocity distributions. The nonuniqueness is demonstrated by different velocity distributions that share identical first arrival time data. In these examples, the combined Fresnel zone for all source and receiver combinations do not cover the entire imaging region and leave there uncovered regions we call white holes.Keywords
This publication has 4 references indexed in Scilit:
- Stable iterative reconstruction algorithm for nonlinear traveltime tomographyInverse Problems, 1990
- Fermat’s principle and nonlinear traveltime tomographyPhysical Review Letters, 1989
- A Limitation on Ultrasonic Transmission TomographyUltrasonic Imaging, 1980
- Diffraction by an ApertureJournal of Applied Physics, 1957