A New Look at an Old Tool-the Cumulative Spectral Power of Fast-Fourier Transform Analysis

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

As an old and widely used tool, it is still possible to find new insights and applications from Fast Fourier Transform (FFT)-based analyses. The FFT is frequently used to generate the Power Spectral Density (PSD) function, by squaring the spectral components that have been corrected for influence from the instrument that generated the data. Although better than a raw-data spectrum, by removing influence of the instrument transfer function, the PSD is still of limited value for time varying signals with noise, due to the very nature of the Fourier transform. The authors present here another way to treat the FFT data, namely the Cumulative Spectral Power (CSP), as a promising means to overcome some of these limitations. As will be seen from the examples provided, the CSP holds promise in a variety of different fields.
10 pages, 5 figures

Keywords

Data Analysis, Statistics and Probability

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/217239

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0901.3708
 http://arxiv.org/abs/0901.3708

Collections

arXiv