Comparison of Coherent and Incoherent Beamforming Envelope Detectors for NORSAR Regional Seismic Events

Abstract

The performance of the conventional coherent beam envelope detector and the incoherent beam envelope detector were studied and compared using short- period Norwegian Seismic Array (NORSAR) data from regional earthquakes and presumed explosions. The detectors were evaluated in two frequency bands in terms of detection performance, false alarm characteristic, and the resultant operating characteristic. A detector using the envelope of the array beam computed with the Hilbert transform was also examined.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1974
Accession Number
ADA012297

Entities

People

  • Wen- Wu Shen

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • C4I
  • Human Systems
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Computations
  • Databases
  • Detection
  • Detectors
  • Earthquakes
  • Explosions
  • False Alarms
  • Frequency Bands
  • Gaussian Distributions
  • Information Science
  • Probability
  • Seismic Arrays
  • Statistical Analysis
  • Travel Time
  • Underground Explosions

Readers

  • Image Processing and Computer Vision.
  • Seismology