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Increasing frequency resolution of FFT on a windowed sample of a signal

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#fast-fourier-transform
172
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Using fft() in Matlab

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#matlab #fourier-transform #signal-processing #fast-fourier-transform
2.4k
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How to calculate 8-point FFT of data by hand

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#linear-algebra #fourier-series #fourier-transform #fast-fourier-transform
52
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Efficient way to do a Fourrier Transform like operation

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#real-analysis #calculus #matlab #fast-fourier-transform
211
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How to minimize sum of matrix-convolutions?

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#optimization #fourier-transform #convolution #fast-fourier-transform
178
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Why is the dot product of two columns $j$ and $k$ in FFT equal to $1+w^{j-k} + \dots + w^{(n-1)(j-k)}$?

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#orthogonality #fast-fourier-transform
137
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Coordinates of a vector FFT

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57
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Discrete Fourier transform of sampled sin function nothing like continuous?

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103
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Any Efficient Multiplication with a Primitive Root over Prime Field?

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1.2k
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Fast Fourier Transform algoritm - simple explanation(step by step)

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#image-processing #fast-fourier-transform
58
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Could families of "Airys" and "Bairys" of integer "frequencies" be useful?

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#partial-differential-equations #fourier-analysis #physics #applications #fast-fourier-transform
60
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Fourier tranform of the derivative

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#partial-differential-equations #fourier-analysis #fourier-transform #fast-fourier-transform #fourier-restriction
43
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Calculate $Av^{\rightarrow}$ using FFT

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#fourier-transform #fast-fourier-transform
71
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2D FFT with unit stride data access?

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680
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circulant matrix inversion using fast fourier transform

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#linear-algebra #inverse #numerical-linear-algebra #matrix-decomposition #fast-fourier-transform

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