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Recovering Acoustic and Elastic Parameters From Travel Times

[+] Author Affiliations
Gunther Uhlmann

University of Washington, Seattle, WA

Sönke Hansen

Universität Paderborn, Paderborn, Germany

Paper No. IMECE2002-32149, pp. 1-6; 6 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Noise Control and Acoustics
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Noise Control and Acoustics Division
  • ISBN: 0-7918-3643-6 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


The relation between travel times and waves in anisotropic media is explained using the geometrical optics method in a phase space setting. This approach also covers caustics and multiple arrivals. We than consider the question of whether one can determine an anisotropic index of refraction by measuring travel times. We show that this is indeed the case if the index of refraction satisfies some additional assumptions.

Copyright © 2002 by ASME
Topics: Acoustics



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