A more general form of analysis for transferring a time-domain signal to the frequency domain is called the Fourier transform. Compare: FOURIER SYNTHESIS, HELMHOLTZ RESONATOR, LAW OF SUPERPOSITION, ...

[Simon Inns] just rolled out his latest project, a PIC based spectrum analyzer. He’s using a Fast Fourier Transform routine crafted in C to run as efficiently as possible on the 8-bit chip.

Linear transforms — like a Fourier transform — are a key math tool in engineering and science. A team from UCLA recently published a paper describing how they used deep learning techniques to ...