153 citations · 899 across the 45 of their papers we have counts for
4 papers · 2 filters
On foundational discretization barriers in STFT phase retrieval
Philipp Grohs, Lukas Liehr
We prove that there exists no window function and no lattice such that every is determined up to…
Sobolev-type embeddings for neural network approximation spaces
Philipp Grohs, Felix Voigtlaender
We consider neural network approximation spaces that classify functions according to the rate at which they can be approximated (with error measured in ) by ReLU neural networ…
Stable Gabor phase retrieval in Gaussian shift-invariant spaces via biorthogonality
Philipp Grohs, Lukas Liehr
We study the phase reconstruction of signals belonging to complex Gaussian shift-invariant spaces from spectrogram measurements where $\mathc…
-stability analysis for Gabor phase retrieval
Philipp Grohs, Martin Rathmair
We consider the problem of reconstructing the missing phase information from spectrogram data with $$ \mathcal{G}f(x,y)=\int_\mathbb{R} f(t) e^{-π(t-x)^2}e^{-2πi…