Abstract: |
We consider the phase retrieval problem for the short-time Fourier transform (STFT). We establish new results on the reconstruction of wide-band signals up to a global phase factor from only the magnitude of their measurements in the time-frequency domain. The proof of our main result relies on the factorization of functions in the Hardy space on the unit disk, the fractional short-time Fourier transform, and an identity theorem for holomorphic functions. |
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