Wavelet phase retrieval for bandlimited functions

Tag / Zeit: 16.08.2021, 15:40-16:00
Typ: Regulärer Vortrag
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Zusammenfassung: The term phase retrieval indicates a large class of problems in which one seeks to recover a signal from phaseless measurements. In particular, wavelet phase retrieval consists of recovering a signal from the magnitudes of its wavelet coefficients. We consider real-valued bandlimited functions and we derive new uniqueness results for phase retrieval, where the wavelet itself can be complex-valued. In particular, we establish the first uniqueness result for wavelet phase retrieval from samples when the wavelet coefficients are complex-valued.