The Bomem DA3 is a type of Fourier transform spectrometer used for measuring various spectral data and [Usagi Electric] has one. On his quest to understand it he runs down a number of rabbit holes, ...

Over at Quanta Magazine [Shalma Wegsman] asks What Is the Fourier Transform? [Shalma] begins by telling you a little about Joseph Fourier, the French mathematician with an interest in heat propagation ...

The inverse Fourier transform (inverse FFT or iFFT) reverses the operation of the Fourier transform and derives a time-domain representation from a frequency-domain ...

Fourier transform is a key method for analyzing signals in both time and frequency domains. The FFT is a computational algorithm that efficiently computes the discrete Fourier transform (DFT) and its ...

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Abstract: The paper discusses direct and inverse parametric discrete Fourier transforms of two types, which have a “control” parameter over a variable responsible for frequency or time. The basic ...

1 Department of Physics and Electronic Information Engineering, Optical Engineering, Zhejiang Normal University, Jinhua, China. 2 Department of Computer Science and Technology, Software Engineering, ...