Auto and Cross-Bispectral Analysis of Scalar and Vector Time Series: Programs, Program Descriptions, and Tests with Artificial Data.

Abstract

This report describes a series of computer programs developed at Woods Hole Oceanographic Institution during 1977 to compute scalar bispectra and cross-bispectra (BISCAL), rotary bispectra and cross-rotary bispectra (BIVEC) and to display corresponding bicoherences (BPLOT) and rotary bicoherences (RBPLOT) as contour plots on the bi-frequency plane. The usual method of calculating the bispectrum in the frequency domain after using the Fast Fourier Transform is used here, and so there is a program for calculating the Fourier coefficients (FOURIER) as well as programs for organizing the data (FRAGTAP, ORDAT) or generating artificial series (GENRAN) if desired. There is also one special-purpose program which calculates line integrals of (scalar) bicoherences in the bifrequency plane along paths of constant = +w1 + w2 to determine the relative total contribution of quadratic interactions to each frequency (BISUM). (KAR) P. 246

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1978
Accession Number
ADA296708

Entities

People

  • Gerard H. Martineau
  • Melbourne G. Briscoe

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computations
  • Computer Programs
  • Computers
  • Confidence Limits
  • Energy Transfer
  • Fast Fourier Transforms
  • Free Field
  • Frequency
  • Frequency Domain
  • Gaussian Noise
  • Gaussian Processes
  • Grids
  • Information Processing
  • Integrals
  • Noise
  • Spectra
  • Two Dimensional

Readers

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