fast fourier transform - Robuta Search

https://www.scirp.org/reference/ReferencesPapers?ReferenceID=2323218

Brigham, E.O. (1974) The Fast Fourier Transform. Prentice-Hall, Englewood Cliffs.

https://edubirdie.com/docs/massachusetts-institute-of-technology/2-161-signal-processing-continuous-an/107081-the-fast-fourier-transform

MASSACHUSETTS INSTITUTE OF TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING 2.161 Signal Processing - Continuous and Discrete The Fast... Read more

https://www.nrc.gov/reading-rm/doc-collections/nuregs/agreement/ia0220/index