Computation of Power Spectral Densities and Correlations Using Digital FFT Techniques
Abstract
Spectral measurements are frequently required in fluid mechanics applications. Traditionally they have been made using analog techniques. With the development of the Fast Fourier Transform algorithms in the mid 1960's, digital techniques have evolved which enable power spectral densities and correlation functions to be calculated with costs much less than were previously possible. This report is intended to describe the Fast Fourier Transform algorithms available at Colorado State University, outline some of the difficulties encountered in using these algorithms, and provide a brief description of actual computer programs being used for spectral analysis on the CDC 6400 computer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1975
- Accession Number
- ADB389823
Entities
People
- J. A. Peterka
- R. E. Akins
Organizations
- Colorado State University