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    Efficient implementation of noise whitening post-compensation for narrowband-filtered signals
    1.
    发明授权
    Efficient implementation of noise whitening post-compensation for narrowband-filtered signals 有权

    公开(公告)号：US10826731B2

    公开(公告)日：2020-11-03

    申请号：US16146079

    申请日：2018-09-28

    申请人： Ahmed Mohamed Ibrahim Medra ,  Hossein Najafi ,  Zhuhong Zhang

    发明人： Ahmed Mohamed Ibrahim Medra ,  Hossein Najafi ,  Zhuhong Zhang

    IPC分类号： H04L25/03 ,  H04B1/10

    摘要： Apparatus and methods are provided for noise-whitening post-compensation in a receiver. A first apparatus includes a first whitening filter configured to filter a received signal comprising symbols to generate a first filtered signal. The first apparatus further includes a first decision feedback equalizer having an input coupled to an output of the first whitening filter to receive the first filtered signal. The first decision feedback equalizer is configured to apply decision feedback equalization to the first filtered signal to generate estimates for the symbols of the received signal. A second apparatus includes a decision device configured to generate a symbols decision based on a received signal comprising symbols, a noise predictor configured to predict noise in the received signal, and a subtractor configured to subtract the predicted noise from the received signal to generate a symbols estimate.