Search results for " FFT algorithm"

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Fractional-Fourier-transform calculation through the fast-Fourier-transform algorithm.

1996

A method for the calculation of the fractional Fourier transform (FRT) by means of the fast Fourier transform (FFT) algorithm is presented. The process involves mainly two FFT’s in cascade; thus the process has the same complexity as this algorithm. The method is valid for fractional orders varying from −1 to 1. Scaling factors for the FRT and Fresnel diffraction when calculated through the FFT are discussed.

business.industryNon-uniform discrete Fourier transformMaterials Science (miscellaneous)Fast Fourier transformPrime-factor FFT algorithmShort-time Fourier transformIndustrial and Manufacturing EngineeringFractional Fourier transformDiscrete Fourier transformOpticsSplit-radix FFT algorithmRader's FFT algorithmBusiness and International ManagementbusinessAlgorithmMathematicsApplied optics
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