LARGE-ARRAY SIGNAL AND NOISE ANALYSIS

Abstract

A study using large-array data of the capability to discriminate between seismic energy from earthquakes and explosions was conducted. An ensemble of 38 teleseismic earthquake and explosion events recorded by the short-period LASA was analyzed. Identification parameters measuring P-coda complexity and relative spectral content were computed for the entire LASA and for subarray beam-steer outputs. Comparisons were made both on an individual event basis and statistically for various subensembles. Techniques for improving the detectability of depth phases and aftershocks, though originally developed for network application, were also examined by treating the 21 subarrays as elements of a network.

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Document Details

Document Type
Technical Report
Publication Date
Sep 08, 1967
Accession Number
AD0820871

Entities

People

  • Frank H. Binder

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Amplitude
  • Arrays
  • Beam Steering
  • Contracts
  • Data Processing
  • Data Reduction
  • Detection
  • Earthquakes
  • Explosions
  • Filtration
  • Frequency
  • Government (Foreign)
  • Identification
  • Security
  • Spectra
  • Waves

Readers

  • Computational Modeling and Simulation
  • Seismology