Lukas Liehr

activity

20192026

most citedOn foundational discretization barriers in STFT phase retrieval

30 citations · 127 across the 22 of their papers we have counts for

collaborators

Showing 2021Show all

2 papers · 1 filter

math.FA2021★ 30 cited

On foundational discretization barriers in STFT phase retrieval

Philipp Grohs, Lukas Liehr

We prove that there exists no window function $g \in L^{2} (R)$ and no lattice $L \subset R^{2}$ such that every $f \in L^{2} (R)$ is determined up to…

math.FA2021★ 9 cited

Stable Gabor phase retrieval in Gaussian shift-invariant spaces via biorthogonality

Philipp Grohs, Lukas Liehr

We study the phase reconstruction of signals $f$ belonging to complex Gaussian shift-invariant spaces $V^{\infty} (φ)$ from spectrogram measurements $∣ G f (X) ∣$ where $\mathc…