The Prime Factor Algorithm (PFA) [1] is a Fast Fourier Transform (FFT) algorithm [2] discovered by Good and Thomas before the more popular Cooley-Tukey algorithm with ...

Implementations are for learning purposes only. They may be less efficient than the implementations in the Python standard library. Use them at your discretion.

Abstract: Fast Fourier Transform (FFT) algorithms play a fundamental role in modern digital signal processing (DSP). A composite length FFT decomposes a longer-length FFT into multiple shorter-length ...

Abstract: This paper presents the approximate designs of Fast Fourier Transformation (FFT) circuit. The tradeoff between accuracy and hardware performance is achieved ...