Sampling trajectories for the short-time Fourier transform
Functional Analysis
2021-12-06 v3
Abstract
We study the problem of stable reconstruction of the short-time Fourier transform from samples taken from trajectories in . We first consider the interplay between relative density of the trajectory and the reconstruction property. Later, we consider spiraling curves, a special class of trajectories, and connect sampling and uniqueness properties of these sets. Moreover, we show that for window functions given by a linear combination of Hermite functions, it is indeed possible to stably reconstruct from samples on some particular natural choices of spiraling curves.
Cite
@article{arxiv.2106.01018,
title = {Sampling trajectories for the short-time Fourier transform},
author = {Michael Speckbacher},
journal= {arXiv preprint arXiv:2106.01018},
year = {2021}
}