4 papers
Algorithmic Implementation of Multi-Window STFT Phase Retrieval
Ting Chen, Hanwen Lu, Wenchang Sun +1
STFT phase retrieval aims to reconstruct a signal from spectrogram magnitudes. While two compactly supported windows theoretically guarantee uniqueness, a complete algorithmic fram…
STFT Phase Retrieval with Two Window Functions
Ting Chen, Hanwen Lu, Wenchang Sun +1
In this paper, we consider the uniqueness of STFT phase retrieval with two window functions. We show that a complex-valued locally integrable nonseparable signal is uniquely determ…
Sampling Density for Gabor Phase Retrieval
Ting Chen, Hanwen Lu, Wenchang Sun
Gabor phase retrieval stands for recovering a square integrable function up to a global phase from absolute values of its Gabor transform. In this paper, we study Gabor phase retri…
Nonuniform Sobolev Spaces
Ting Chen, Loukas Grafakos, Wenchang Sun
We study nonuniform Sobolev spaces, i.e., spaces of functions whose partial derivatives lie in possibly different Lebesgue spaces. Although standard proofs do not apply, we show th…