Abstract
THE CHIRP Z-TRANSFORM (CZT) is an algorithm1 for computing the discrete fourier transform (DFT). Starting with the DFT definition N-1 Xk= Σ xne-127 Π nk/N n=0 and making the substitution 2nk - k2+ n2- (k-n)2the CZT equation results N-1 Σ Xk =(Xn e-iTfn IN) ei71(k-n) 2 IN n=0 The alogrithm has three steps: (J)-premultiplication of the xn by a complex chirp waveform. (2)-convolution in a filter having a complex chirp impulse response and. (3)-postmultiplicalion by a complex chirp waveform.
Cite
CITATION STYLE
Brodersen, R. W., Fu, H. S., Frye, R. C., & Buss, D. D. (1975). A 500-point fourier transform using charge-coupled devices. In Digest of Technical Papers - IEEE International Solid-State Circuits Conference (Vol. 1975-February, pp. 144–145). Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/ISSCC.1975.1155444
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