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The fast Fourier transform is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse.

1 vote
0 answers
76 views

Estimating a Power Spectrum from a Time Series [duplicate]

What are the best ways to estimate the power spectrum of a given time series? Any pointers to review articles or book chapters would be appreciated. A little more information: When estimating a powe …
Chris Mueller's user avatar
2 votes

physical meaning of fourier transform

I read your question a little differently than the other people who have answered. The role of the Fourier transform in physics is as a bi-directional one-to-one mapping between conjugate variables. …
Chris Mueller's user avatar