Open AccessTomographic and entropic analysis of modulated signals-=SUP=-*-=/SUP=-
Author(s) -
Alena S. Mastiukova,
M. A. Gavreev,
Evgeniy O. Kiktenko,
Aleksey K. Fedorov
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.07.49559.31-20
Subject(s) - wigner distribution function , fourier transform , entropic uncertainty , amplitude , physics , frequency modulation , tomography , fourier analysis , time–frequency analysis , statistical physics , quantum , optics , fast fourier transform , computational physics , algorithm , computer science , quantum mechanics , uncertainty principle , telecommunications , radio frequency , radar
We study an application of the quantum tomography framework for the time-frequency analysis of modulated signals. In particular, we calculate optical tomographic representations and Wigner-Ville distributions for signals with amplitude and frequency modulations. We also consider time-frequency entropic relations for modulated signals, which are naturally associated with the Fourier analysis. A numerical toolbox for calculating optical time-frequency tomograms based on pseudo Wigner-Ville distributions for modulated signals is provided.