Reproducibility of Reflections from the Bottom of the Ocean,

Abstract

The signals reflected by the bottom of the ocean are complex and dependent upon the location. Seismic profiling data were taken in typically smooth and rough areas. The similarity of reflection signals as a function of the ship's position was studied for the areas. A portion of the reflection signal for a transmission was stored in a Deltic memory. The cross correlation of reflection signals from subsequent transmissions and the stored signal was measured. In smooth areas the correlation of subsequent transmissions with the reference was about the same as the autocorrelation for over 0.5 nm translations. In rough areas, the correlations of the reference and subsequent transmissions were very small. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 1965
Accession Number
ADA068772

Entities

People

  • C. S. Clay
  • W. L. Liang

Organizations

  • Columbia University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cape Hatteras
  • Correlators
  • Cross Correlation
  • Data Science
  • Deep Water
  • Detectors
  • Information Science
  • Matched Filters
  • Measurement
  • New York
  • Power Spectra
  • Reflection
  • Reflectivity
  • Roughness
  • Seabed
  • Seismic Reflection
  • Water

Readers

  • Acoustical Oceanography.
  • Radar Systems Engineering.
  • Systems Analysis and Design