从这个角度来理解FFT及其背后效率的提高，比较新颖。 不过它却隐藏了利用FFT计算所得到数据频谱的物理含义， 这或许成为这个视频讲解所付出的代价。 关键词： FFT，快速算法 01 多项式相乘 在 视频 The Fast Fourier Transform (FFT): Most Ingenious Algorithm Ever?

下面的代码是在 The Fast Fourier Transform (FFT): Most Ingenious Algorithm Ever? 视频中给出的 FFT 递归算法形式， 最大精度反映了FFT算法核心。

This is a preview. Log in through your library . Abstract Apart from the fact that they are both ingenious and remarkably efficient, there would appear to be little kinship between fast Fourier ...

Fast Fourier Transform (FFT): An algorithm that computes the Discrete Fourier Transform (DFT) efficiently in O (N log N) time.

With the new algorithm, called the sparse Fourier transform (SFT), streams of data can be processed 10 to 100 times faster than was possible with the FFT.

The algorithm itself, like the FFT that came before it, is open source and available to anybody who wants to use it. Hassanieh has spent the past four years working on specific implementations of the ...

In this paper, we present the modeling benefits of using Lévy processes and the fast Fourier transform (FFT) in the valuation of gas storage assets and, from a practi- tioner’s perspective, in ...

MIT researchers could speed up file compression using an improved Fourier transform algorithm A group of MIT researchers believe they’ve found a way to speed up audio, video, and image ...

The Fast Fourier Transform (FFT) is an implementation of the Discrete Fourier Transform (DFT) using a divide-and-conquer approach. A DFT can transform any discrete signal, such as an image, to and ...