Input data examples when working with FOURIER and PSD spectra

PSD.trc_ipsdf: Recreate the track from a PSD spectra.
PSD.psdf: Translate a track in Cartesian coordinates into a PSD spectra. The PSD spectra is calculated via the autocorrelation of the signal.
PSD.psd_fourf: Translate a track in Cartesian coordinates into a PSD spectra. The PSD spectra is calculated via the FOURIER spectra of the signal.
PSD.trc_psdplf: Plotting of PSD diagrams.
FOURIER.trc_fourplf: Plotting of FOURIER diagrams.