CORRELATION DETECTION OF SEISMIC DISTURBANCES,

Abstract

In a medium in which noise and signal propagate with different velocities, a detection scheme making use of the cross-correlation between the received waveforms at two different locations offers a number of distinct advantages over one making use of ordinary autocorrelation of the received waveform. These advantages arise from the resultant relative shift between the noise and signal autocorrelation functions allowing for separation of noise and signal when the noise characteristics or statistics are unknown, and even where the processes are non-stationary. Ramifications of the correlation shift are an improvement in signal-to-noise ratio (even when noise characteristics are known) , and capability for measurement of velocity, signal source direction, and signal and noise and channel characteristics. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 27, 1963
Accession Number
AD0427392

Entities

People

  • Paul W. Cooper

Organizations

  • Sylvania Electric Products

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Autocorrelation
  • Correlators
  • Cross Correlation
  • Data Science
  • Detection
  • Detectors
  • Direction Finding
  • Explosions
  • Information Science
  • Measurement
  • Nuclear Explosions
  • Random Variables
  • Signal Detection
  • Stationary
  • Statistics
  • Waveforms
  • Waves

Fields of Study

  • Engineering

Readers

  • Acoustics.
  • Fluid Dynamics.
  • Radar Systems Engineering.