Title :
Analog computation of the fast Fourier transform
Abstract :
A method is proposed for computing the discrete Fourier transform of complex data whose real and imaginary parts are represented as voltages. Operational amplifiers and resistors are the only computing elements required.
Keywords :
Analog computers; Concurrent computing; Discrete Fourier transforms; Fast Fourier transforms; Hardware; Inductance; Operational amplifiers; Optical amplifiers; Resistors; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1970.8043
