CRITERIA FOR EVALUATING FOURIER TRANSFORM COMPUTATIONAL RESULTS.

Abstract

When numerical methods are used to calculate Fourier transforms from discrete points from the input and output of a dynamic system, the resulting Bode plot degenerates at high frequencies. Several factors contribute to this, e.g., foldover, noise in data, computational methods, etc. To effectively analyze the effect of these, it is essential that the blow-up point be determined accurately and consistently. This paper examines integral criteria for this purpose. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1970
Accession Number
AD0700055

Entities

People

  • Carlos Ray Dollar
  • Cecil L. Smith
  • Paul W. Murrill

Organizations

  • Louisiana State University

Tags

DTIC Thesaurus Topics

  • Automata
  • Computational Science
  • Frequency
  • Frequency Bands
  • Integrals

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)