Robust Sequential Detection of Narrowband Acoustic Signals in Noise.

Abstract

Given only the outputs from a discrete Fourier transform (DFT) a robust sequential detector (RSD) for weak signals is derived based on m-interval partitioning. A loglikelihood ratio at the output of the DFT is formulated assuming knowledge of a set of quantiles and scores of the unknown and possible changing noise distribution. The quantiles and scores are chosen to minimize the average time to a decision under practical implementation constraints. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 09, 1979
Accession Number
ADA069829

Entities

People

  • Roger F. Dioyer

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Signals
  • Additives (Chemicals)
  • Biodiesels
  • Detection
  • Detectors
  • Efficiency
  • Equations
  • False Alarms
  • Frequency
  • Gaussian Noise
  • Intervals
  • Materials
  • Narrowband
  • Numbers
  • Probability
  • Statistics
  • Warning Systems

Readers

  • Approximation Theory.
  • Statistical inference.