scipy.signal.convolve — SciPy v1.12.0 Manual
scipy.signal.correlate — SciPy v1.12.0 Manual
scipy.signal.iircomb — SciPy v1.12.0 Manual
Short Time Fourier Transform using Python and Numpy
scipy.signal.lsim — SciPy v1.12.0 Manual
scipy.special.jvp — SciPy v1.12.0 Manual
scipy.signal.windows.dpss — SciPy v1.12.0 Manual
The Fourier Transform: A Tutorial Introduction: Stone, James V: 9781916279148: : Books
A Comprehensive Guide on Fourier Analysis - Analytics Vidhya