Deterministic Methods of Seismic Source Identification

Abstract

The objectives were to: (1) Develop and test methods of discrimination in the regional and teleseismic distance range using physical source parameter discriminants, Pursue theoretical and observational studies of seismic sources; (3) develop methods of theoretical seismogram synthesis in the near, regional and teleseismic distance ranges for structure and source definition; (4) Develop and apply advanced signal processing/analysis methods for discrimination and explosion yields estimation studies and; (5) Pursue near field studies of explosions and earthquakes for detailed source definition. This report describes specific research results pertaining to: (1) The theoretical basis for automatic seismic signal detection and analysis, and (2) Analytical methods for the representation of seismic radiation fields in uniformly layered elastic/anelastic media. This modal method provides predictions of both body and surface waves in the frequency range from 0 to about 15 HZ at near and regional distances from seismic sources. This latter exposition is intended to be comprehensive and integrates new and old results and methods. The modal representation method for seismic radiation fields is being employed to describe radiation fields for the prediction of earthquake and explosion radiation fields and has been used to evaluate a variety of detection and discrimination methods.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1984
Accession Number
ADA171029

Entities

People

  • Charles B. Archambeau

Tags

Communities of Interest

  • Energy and Power Technologies
  • Engineered Resilient Systems
  • Sensors

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Coordinate Systems
  • Detection
  • Differential Equations
  • Doppler Effect
  • Elastic Waves
  • Frequency
  • Identification
  • Mathematical Filters
  • Near Field
  • Signal Detection
  • Signal Processing
  • Surface Waves
  • Test Methods
  • Wave Equations
  • Wave Propagation

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Seismology
  • Systems Analysis and Design