vsgabel/psd_tools

psd-tools is a small NumPy library that turns regularly sampled signals and fields into variance-normalized power spectra. Users call the top-level exports for 1D, 2D or 3D analysis; the 2D and 3D paths also provide radial averaging, while plotting helpers shift and scale a 2D spectrum. Window correction and Parseval diagnostics are built into the spectral routines. The graph focuses on runtime capabilities; the README also documents the 3D frequency–radial-wavenumber transform, whose implementation is in the sampled 3D module. There are no external services or persistent stores.