Abstract: This paper generalizes the windowing technique used in the sliding discrete Fourier transform (SDFT) operation instead of applying only the default rectangular window. Further extending it ...

The fruits of car designers’ efforts are often revealed at vehicle launches with all the ceremony of a fine-art unveiling. Trumpets sound. Spotlights glare. Curtains sweep back. The assembled motoring ...

Abstract: Convolution of a discrete Walsh function with a rectangular pulse simplifies the derivation of an expression for the Fourier transform of a Walsh function. The nonrecursive transform ...

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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 dataset. Figure 1. The inverse ...

We present ion dynamics simulations regarding the effect of space charge on the performance of Fourier transform quadrupole ion traps (FT-QITs) with special attention to signal stability, mass ...

An extension to numpy using discrete fourier transforms to compute the curl of 2D and 3D functions. This produces results far more accurate than using 10th-order finite difference derivatives (which ...

#1 Publication focused exclusively on Interpolation, ie determining value from the existing values in a given data set. #1 Publication focused exclusively on Interpolation, ie determining value from ...

This multipart series will review the discrete Fourier Transform and describe how to avoid common problems when transitioning from the time to frequency domain. A recent post on phase noise discussed ...

The sampling process of a signal is of an ideal type as it extends from −∞ to +∞ on the time axis, hence the infinite number of instants t n. This destroys the possibility of using an electronic ...