Fast Fourier Transformations

a transform of signal data from time to frequency domains: an algorithm that analyzes a finite time series of data points into component frequencies

Fast Fourier Transform - a specific algorithm, but used to indicate any algorithm attempting to determine the power versus frequency graph for a signal.

An acronym for: Fast Fourier Transform. An efficient implementation of the Fourier transform in the discrete time domain, with a logarithmic increase of the number of operations per each output sample.

Fast Fourier Transformation.

Fast Fourier Transform; an algorithm for converting data from the time to frequency domain; often used in signal processing.

Fast Fourier Transform. A computer (or microprocessor) procedure for calculating discrete frequency components from sampled time data. A special case of the Discrete Fourier Transform, DFT, where the number of samples is constrained to a power of 2 for speed.

Fast Fourier Transform. Mathematical algorithm for rapidly finding the discrete Fourier Transform of data.

Fast Fourier Transform. A computationally efficient mathematical technique that converts digital information from the time domain to the frequency domain for rapid spectral analysis. FFTs generally use a "time weighting" function to compensate for data records with a non-integer number of samples; some popular weighting functions are Hanning Window and 4-term Blackman-Harris.

Fast Fourier transform. A quick method of performing a Fourier analysis on a sound. See Fourier analysis.

Fast Fourier Transform [fæst ˈfʊɹiˌje ˈtɹænzˌfɔɹm] - the most common mathematical technique for finding the spectrum of a waveform.

Fast Fourier transform. A signal processing term for a common computer implemetation of Fourier transforms. The FFT will always result in a finite series of sine and cosine waves as an extremely close approximation of the possibly infinite series described by the purely mathematical application of the Fourier Transform. Return

a particularly fast and efficient computational method of performing a Fourier Transform, which is the mathematical process by which raw data is processed into a usable image.

Fast Fourier Transform. An optimised version of the DFT.

The Fast Fourier Transform is one of the cornerstone computational algorithms of digital signal processing (DSP) because it reduces the number of computations needed for any given task.

(n.) The fast Fourier transform is a technique for the rapid calculation of discrete Fourier transform of a function specified discretely at regular intervals. The technique makes use of a butterfly data structure.

Fast Fourier Transform. En algoritme til at konvertere data fra tids- til frekvensdomæne, som ofte bruges i signalbehandling. Full duplex Muligheden for et lydkort til samtidigt at indspille og afspille lyd.

Fast Fourier Transform. A Fourier Transform is the mathematical operation that takes measurements made with a radio interferometer and transforms them into an image of the radio sky. The Fast Fourier Transform is technique used by computer programs that allows the Fourier Transform to be computed very quickly.

Fast Fourier Transform. The FFT is an algorithm, or digital calculation routine, that efficiently calculates the discrete Fourier transform from the sampled time waveform. In other words it converts, or "transforms" a signal from the time domain into the frequency domain.

see Fast Fourier Transform

An acronym for Fast Fourier Transform, a technique for very fast computation of Fourier series. A discrete Fourier transform using N points can be computed in N log N steps by the fast method, whereas the straightforward method would take N**2 steps.

An abbreviation for Fast Fourier Transform, a method of quickly analysing cycle frequencies on a computer, usually with data series that are a power of 2 long.

Family of mathematical techniques that decomposes signal into sinusoids, usually for purpose of analysis (spectrum analysis) and therefore calculating average or most dominant frequency. FFT is an optimized version of FT using integers which is used for real-time DSP, sometimes hundreds time faster. FFT calculation is very CPU intensive. FFT is the basis of nowadays' sample compression used in a lot of the 64kb intros of the demoscene.

fast Fourier transform. An efficient mathematical algorithm used for spectrum analysis.

A mathematical operation performed on a time-domain signal to yield the individual spectral components that constitut the signal. See Spectrum.

( fast Fourier transform) 1. Similar to a discrete Fourier transform except the algorithm requires the number of sampled points be a power of two. 2. A DSP algorithm that is the computational equivalent to performing a specific number of discrete Fourier transforms, but by taking advantage of computational symmetries and redundancies, significantly reduces the computational burden. [It is believed the FFT was first described by Cornelius Lanczos of the Boeing Co. in the 1940's.

Fast Fourier Transfer. An analysis algorithm - given a finite set of data points, the FFT expresses the data in terms of its component frequencies.