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The fast Fourier transform algorithm is specified in a data parallel version of 'C'. This specification is used to produce a custom circuit suitable for use in a system based on reconfigurable logic. Performance estimates indicate that this approach is capable of producing the 2D Fourier transform of images at real time video rates.
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Steven A. Guccione, Mario J. Gonzalez, "FFT on reconfigurable hardware," Proc. SPIE 2607, Field Programmable Gate Arrays (FPGAs) for Fast Board Development and Reconfigurable Computing, (19 September 1995); https://doi.org/10.1117/12.221344