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Blind adaptive decision feedback equalizer for high-speed serial communications
Blind adaptive decision feedback equalizer for high-speed serial communications
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机译:用于高速串行通信的盲自适应判决反馈均衡器
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摘要
A blind adaptive decision feedback equalizer technique relies on two thresholds. The first threshold is applied to the incoming sampled analog data. According to this aspect of the invention, if the signal magnitude exceeds the threshold, then it is considered valid, while if it is below the threshold, it is considered erroneous. This reduces processing, because not every sample generates an error signal. The second threshold is a block threshold that determines when the filter coefficients are updated to account for the incoming data. In accordance with this aspect of the invention, only when a certain number of errors has been accumulated are the coefficients updated. This results in a further reduction in processing.
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