Preliminary Evaluation of the Korean Seismological Research Station Short-Period Array

Abstract

A preliminary evaluation of the Korean Seismological Research Station Short-Period Array is presented in this report. Six noise samples from November 1974 were analyzed yielding spectral content, noise amplitudes, multiple coherence, frequency-wavenumber spectra, and noise reduction due to beamforming. Analysis of eight Eurasian teleseismic events from November 1974 included measurements of single-sensor similarity and amplitude variations across the array. In the beamforming studies, time-delay anomalies, spectral content, frequency-wavenumber spectra, signal degradation, signal-to-noise improvements using beams, and m sub b estimates were calculated. A preliminary estimation of the detectability of Eurasian events was also made.

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Document Details

Document Type
Technical Report
Publication Date
Jul 29, 1975
Accession Number
ADA017395

Entities

People

  • Richard L. Whitelaw
  • Sidney R. Prahl
  • Wen-wu Shen

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Caspian Sea
  • Computations
  • Databases
  • Degradation
  • Detection
  • Detectors
  • Filters
  • Frequency
  • Frequency Bands
  • Phase Velocity
  • Plane Waves
  • Power Spectra
  • Rayleigh Waves
  • Surface Waves
  • Wave Propagation
  • Waves

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Seismology