Rayleigh Waves

Abstract

For a signal-to-noise ratio between 0.2 and 0.1 on the original single-component records, amplitudes for Rayleigh waves over oceanic paths of 155 deg at station MAT and 98 deg. at station KIP have been determined as 12 mu and 24 mu peak-to-peak, respectively, with a standard error of less than 11 per cent. In each case the processed correlation signal is the highest in a half- hour record. The method makes use of preliminary high-pass filtering and normalized reference earthquake-matched filtering, and takes full advantage of the well-dispersed oceanic surface wave. The method also provides high resolution of co-located events with short time separation, or of widely spaced events with Rayleigh waves arriving nearly simultaneously at a single station, when the summed vertical and radial matched filtered components are used.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1976
Accession Number
ADA028331

Entities

People

  • Eduard Berg

Organizations

  • University of HawaiĘ»i System

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Background Noise
  • Beam Forming
  • Computer Programs
  • Computers
  • Correlation Techniques
  • Filtration
  • Geophysics
  • High Resolution
  • Matched Filters
  • Measurement
  • Precision
  • Rayleigh Waves
  • Recording Systems
  • Seismology
  • Societies
  • Surface Waves

Readers

  • Approximation Theory.
  • Mathematics or Statistics
  • Statistical inference.

Technology Areas

  • Space