Method and System for Transient Signal Detection

Abstract

A method and system for identifying transient signal features within an acoustic signal first obtains and analyzes a power spectral density (PSD) plot of the signal to determine if it exhibits broadband characteristics. If broadband characteristics are exhibited, then the auto-correlation function is examined for signs of transient behavior. If the auto- correlation function exhibits signs of transient behavior, then the state portrait is examined to determine the transformation to noise-like behavior. Processing of an acoustic signal and the quieting of self noise generating equipment can then be concentrated on the portion of the signal prior to the transformation to noise-like behavior.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1999
Accession Number
ADD019429

Entities

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Signals
  • Background Noise
  • Bandwidth
  • Broadband
  • Computers
  • Crossings
  • Data Sets
  • Detection
  • Flow Noise
  • Frequency
  • Inventions
  • Noise
  • Patent Applications
  • Patents
  • Self Noise
  • Signal Detection
  • Signal Processing

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Approximation Theory.
  • Control Systems Engineering.