Fast compressive phase retrieval from Fourier measurements

Ç Yapar, V Pohl, H Boche - 2015 IEEE International …, 2015 - ieeexplore.ieee.org
2015 IEEE International Conference on Acoustics, Speech and Signal …, 2015ieeexplore.ieee.org
This paper considers the problem of recovering a k-sparse, N-dimensional complex signal
from Fourier magnitude measurements. It proposes a Fourier optics setup such that signal
recovery up to a global phase factor is possible with very high probability whenever M≳ 4k
log 2 (N/k) random Fourier intensity measurements are available. The proposed algorithm is
comprised of two stages: An algebraic phase retrieval stage and a compressive sensing
step subsequent to it. Simulation results are provided to demonstrate the applicability of the …
This paper considers the problem of recovering a k-sparse, N-dimensional complex signal from Fourier magnitude measurements. It proposes a Fourier optics setup such that signal recovery up to a global phase factor is possible with very high probability whenever M ≳ 4k log 2 (N/k) random Fourier intensity measurements are available. The proposed algorithm is comprised of two stages: An algebraic phase retrieval stage and a compressive sensing step subsequent to it. Simulation results are provided to demonstrate the applicability of the algorithm for noiseless and noisy scenarios.
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