Title :
Discrete Fourier transform of correlation functions
Author_Institution :
University of Edinburgh, Department of Electrical Engineering, Edinburgh, UK
Abstract :
The Van Vleck equation relating the polarity correlation function to the direct correlation function is used to derive a new algorithm for the evaluation of the discrete Fourier transform of the direct correlation function. Application of an implementation of the algorithm to correlation-based measurement is discussed.
Keywords :
correlation methods; fast Fourier transforms; Van Vleck equation; correlation functions; direct correlation function; discrete Fourier transform; polarity correlation function;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790137
