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Robust phase retrieval with the swept approximate message passing (prSAMP) algorithm
Boshra Rajaei, Sylvain Gigan, Florent Krzakala +1
In phase retrieval, the goal is to recover a complex signal from the magnitude of its linear measurements. While many well-known algorithms guarantee deterministic recovery of the…
Fast phase retrieval for high dimensions: A block-based approach
Boshra Rajaei, Sylvain Gigan, Florent Krzakala +1
This paper addresses fundamental scaling issues that hinder phase retrieval (PR) in high dimensions. We show that, if the measurement matrix can be put into a generalized block-dia…
Blind Denoising with Random Greedy Pursuits
Manuel Moussallam, Alexandre Gramfort, Laurent Daudet +1
Denoising methods require some assumptions about the signal of interest and the noise. While most denoising procedures require some knowledge about the noise level, which may be un…
Convex Optimization Approaches for Blind Sensor Calibration using Sparsity
Cagdas Bilen, Gilles Puy, Rémi Gribonval +1
We investigate a compressive sensing framework in which the sensors introduce a distortion to the measurements in the form of unknown gains. We focus on blind calibration, using me…
Source localization in reverberant rooms using sparse modeling and narrowband measurements
Gilles Chardon, Laurent Daudet
We study two cases of acoustic source localization in a reverberant room, from a number of point-wise narrowband measurements. In the first case, the room is perfectly known. We sh…