EDN

A Simple and Efficient FFT Implementation in C++: Part II

The implemented template class recursion has P levels. Every FFT calculation process runs from level P to level 1, while the level 1 is empty (Listing Three, in part one of this article). Some ...
Nature

Fast Fourier Transform Processors and Architectures

The Fast Fourier Transform (FFT) remains a cornerstone of digital signal processing, underpinning applications from telecommunications to medical imaging. Modern FFT processors and architectures have ...
Electronic Design

C Program Magnifies Spectrum When An FFT Can't Hack It

Many science and engineering applications require an accurate frequency spectrum or Fourier transform of a signal. The Fourier transform of a sequence of samples of a signal is shown in Equation 1.
Electronic Design

Choose The Right FFT Window Function When Evaluating Precision ADCs

When evaluating the dynamic performance of precision analog-to-digital converters (ADCs) using fast Fourier transform (FFT) analysis, coherent sampling typically is used to accurately measure the ...
Design-Reuse

How to build a fast, custom FFT from C

FPGAs are great vehicles for FFTs. You can get solid libraries from the manufacturer and be quickly on your way. For even faster performance, engineers are splicing their other processing code in-line ...
VentureBeat

Fast Fourier Transform for Image Processing in DirectX 11

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 ...
EDN

A Simple and Efficient FFT Implementation in C++, Part I

Vlodymyr teaches at Brandenburg University of Technology, Cottbus, Germany. He can be reached at myrnyy@math.tu-cottbus.de. This article provided courtesy ofDr. Dobb’s Journal. This article describes ...