Comparison of Methods Used for Shock and Fourier Spectra Computations

Abstract

Analog and digital techniques used in the computation of the shock and Fourier spectra are presented and compared on the bases of speed, accuracy and ease of usage. Analog computers with active and passive elements are considered, and it is concluded that active RC networks make accurate and simple-to-use computers for the analog determination of spectra. The digital techniques studied included the impulse-invariant Fast Fourier transform, z-transform, and the O'Hara method which uses a parabolic interpolation formula.

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Document Details

Document Type
Technical Report
Publication Date
Nov 24, 1970
Accession Number
AD0723536

Entities

People

  • Robert Jr S. Reed

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Science
  • Computer Programs
  • Computer Simulations
  • Computers
  • Control Systems
  • Discrete Fourier Transforms
  • Engineering
  • Filters
  • Fourier Series
  • Mathematical Filters
  • Mathematical Models
  • Operating Systems
  • Ordnance Laboratories
  • Peak Values
  • Periodic Functions
  • Test Equipment
  • Vibration

Readers

  • Approximation Theory.
  • Computer Science.
  • Image Processing and Computer Vision.