Seismic Detectors: The State-of-the-Art

Abstract

The following detectors were reviewed: (1) IBM, (2) Z, (3) Deflection, (4) Analytic Envelope, (5) Allen, (6) Stewart, (7) Walsh, and (8) Mars. All these detectors are based on a comparison between some signal variance over a time period equal in deviation to the expected event and the normal or long time variance. Detectors using the phase have been suggested but not yet satisfactorily implemented. Uniform comparative testing of the detectors has not yet been done and is recommended. Additional research to improve detector performance is needed to: (1) develop phase sensitive detectors; (2) determine the improvements possible with matched filters; (3) further develop hybrid algorithms that combine high detection probability/high false alarm rate algorithms with low false alarm rate past processors; (4) develop algorithms designed specifically for three-component, broad-band data; and (5) investigate the use of dedicated microprocessors to run the detection algorithms on a one processor per channel (or seismic station) basis. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 08, 1981
Accession Number
ADA099446

Entities

People

  • Jon Berger
  • Robert L. Sax

Organizations

  • Utility Systems Science and Software (United States)

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Data Science
  • Databases
  • Detection
  • Detectors
  • Estimators
  • Filtration
  • Frequency Bands
  • Information Processing
  • Information Science
  • Mathematical Filters
  • Measurement
  • Probability Density Functions
  • Probability Distributions
  • Random Variables
  • Recording Systems
  • Statistical Algorithms
  • Statistical Analysis

Readers

  • Approximation Theory.
  • Parallel and Distributed Computing.
  • Seismology