A multiplier‐free dft algorithm using differential coding of coefficients
作者:
Ferenc Kocsis,
期刊:
International Journal of Circuit Theory and Applications
(WILEY Available online 1988)
卷期:
Volume 16,
issue 1
页码: 3-10
ISSN:0098-9886
年代: 1988
DOI:10.1002/cta.4490160103
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractThe proposed procedure is a new, practically multiplier‐free DFT algorithm which is especially suitable for the computation of longer transforms. the method is based on the realization of prime‐length transforms using a single kind of optimized FIR filter. the transform coefficients have been coded differentially and the approximation is signal independent. the accuracy has been characterized by the ratio of the squared sum of the DFT coefficients and the squared sum of the errors of the approximating coefficients. the algorithm producing the approximate sequence is simple, its computational and memory requirements are minimal. and finally, for some transform lengths the characteristics of the algorithms have been deri
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