Title :
Effects of binary quantisation when using the fast Fourier transform to compute power spectral estimates
Author_Institution :
University of Wales, Department of Electrical & Electronic Engineering, Swansea, UK
Abstract :
The effects of severely quantising the multiplication coefficients in the fast Fourier transform have been studied. Rounding these off to the nearest power of 2 produces power-spectrum errors of as little as 0.08% (maximum) for a pure sinewave sampled at 64 points.
Keywords :
error analysis; fast Fourier transforms; quantisation; error analysis; fast Fourier transforms; multiplication coefficients; power spectral estimates; quantisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730266
