Analysis of Long Period Seismic Signals and Noise Recorded at LASA, TFO and UBO

Abstract

Long period signals and noise recorded at the seismic arrays UBO, TFO and LASA were analyzed to provide information useful to signal detection efforts and to evaluate the performance of simple long-period beams formed with these arrays. The analysis included the computation of group velocity dispersion for fundamental mode Rayleigh waves generated by seismic events recorded at these arrays, and the calculation of noise reducing properties of beamforming each of the three arrays for a set of twenty five events.

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Document Details

Document Type
Technical Report
Publication Date
Jun 19, 1970
Accession Number
AD0874843

Entities

People

  • Don M. Clark
  • Herman J. Mecklenburg
  • Robert P. Masse

Organizations

  • Teledyne Technologies

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Bandpass Filters
  • Costa Rica
  • Data Processing
  • Detection
  • El Salvador
  • Filters
  • Government (Foreign)
  • Group Velocity
  • Kurile Islands
  • Low Pass Filters
  • New Guinea
  • Noise Reduction
  • Rayleigh Waves
  • Seismic Arrays
  • Signal Detection
  • Surface Waves

Fields of Study

  • Engineering

Readers

  • Seismology