Spreadsheet Filtering by FFT Gaussian-based Convolution
General Physics
2007-05-23 v1
Abstract
Filtering of digital signals is accomplished on an Excel spreadsheet using fast Fourier transform (FFT) convolution in which the kernel is either a Gaussian or a cosine modulated Gaussian. Pedagogical examples of low-pass and band-pass filtering are provided, and the practical value of the spreadsheet is illustrated with some cases involving an earthquake record generated by a folded pendulum seismometer.
Cite
@article{arxiv.physics/0406087,
title = {Spreadsheet Filtering by FFT Gaussian-based Convolution},
author = {Randall D. Peters},
journal= {arXiv preprint arXiv:physics/0406087},
year = {2007}
}
Comments
12 pages, 6 figures