Scientific and Engineering Studies, Compiled 1990. Signal Processing Studies

Abstract

A numerically efficient method of obtaining the minimum-phase characteristic corresponding to a measured attenuation (or decibel gain) response of a linear network, by means of two fast Fourier transforms, is presented and programmed in BASIC. A method of extrapolating the measured attenuation to very small and large frequencies, as required by the theoretical transformations, is suggested. The attendant logarithmic singularities in the attenuation are subtracted out and handled separately, leaving a residual which is well behaved for numerical Fourier transformation.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1990
Accession Number
ADA264207

Entities

People

  • A. H. Nuttall

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Carrier Frequencies
  • Cross Correlation
  • Detection
  • Detectors
  • Extrapolation
  • False Alarms
  • Fast Fourier Transforms
  • Fourier Transformation
  • Frequency
  • Frequency Shift
  • Integrals
  • Plastic Explosives
  • Probability Density Functions
  • Random Variables
  • Transfer Functions
  • Two Dimensional

Readers

  • Control Systems Engineering.
  • Image Processing and Computer Vision.
  • Systems Analysis and Design