Improved phase retrieval in holographic data storage based on a designed iterative embedded data

来源 :光电子学前沿 | 被引量 : 0次 | 上传用户:hdazf
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Embedded data are used to retrieve phases quicker with high accuracy in phase-modulated holo-graphic data storage(HDS).We propose a method to design an embedded data distribution using iterations to enhance the intensity of the high-frequency signal in the Fourier spectrum.The proposed method increases the anti-noise performance and signal-to-noise ratio(SNR)of the Fourier spectrum distribution,realizing a more efficient phase retrieval.Experiments indicate that the bit error rate(BER)of this method can be reduced by a factor of one after 10 iterations.
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