A Velocity Inversion Procedure for Acoustic Waves.

Abstract

An approximate solution is presented to the seismic inverse problem for two dimensional velocity variations. The solution is given as a multiple integral over the data observed at the upper surface. An acoustic model is used and the reflections are assumed to be sufficiently weak to allow a linearization procedure in the otherwise non-linear inverse problem. Synthetic examples are presented demonstrating accuracy of the method with dipping planes at angles up to 45 deg and with velocity variations up to 20%. The method was also tested under automatic gain contro, in which case velocity estimates were lost but the method nonetheless successfully migrated the data. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 22, 1977
Accession Number
ADA052912

Entities

People

  • Jack K. Cohen
  • Norman Bleistein

Organizations

  • Denver Research Institute

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Waves
  • Automatic Gain Control
  • Computer Programs
  • Computers
  • Data Processing
  • Delta Functions
  • Elastic Waves
  • Equations
  • Frequency
  • Integral Equations
  • Integrals
  • Inverse Problems
  • Inverse Scattering
  • Scattering
  • Three Dimensional
  • Wave Equations
  • Waves

Readers

  • Control Systems Engineering.
  • Seismology
  • Wave Propagation and Nonlinear Chaotic Dynamics.