A neural net approach to discrete Hartley and Fourier transforms
A.D. Culhane, Martin C. Peckerar, Christie R. K. Marrian · IEEE Transactions on Circuits and Systems · 1989
The authors present an electronic circuit, based on a neural (i.e. multiply connected) net to compute the discrete Fourier transform (DFT). They show both analytically and by simulation that the circuit is guaranteed to settle into the correct values within RC time constants (on the order of hundreds of nanoseconds), and they compare its performance to other on-chip DFT implementations.>