THE COHERENCY ANALYSIS OF SEISMIC NOISE.

Abstract

Theory of coherency analysis of noise at seismic arrays is described and illustrated by a synthetic example. The theory is applied to data from a couple of arrays, CPO in Tennessee and a LASA subarray in Montana. Ordinary coherency is shown to be inadequate to describe many multi-input, single-output systems. Partial coherency can be descriptive but may be computationally unstable. Multiple coherency is computationally stable and provides a measure of the number of sensors necessary in an array to adequately describe the coherent noise power. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 27, 1966
Accession Number
AD0486405

Entities

People

  • Loren D. Enochson
  • R. H. Shumway
  • William C. Dean

Organizations

  • Teledyne Technologies

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Arrays
  • Continents
  • Geographic Regions
  • Seismic Arrays
  • Tennessee

Readers

  • Radio communications and signal processing.
  • Seismology
  • Theoretical Analysis.