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Method and apparatus for maximum likelihood detection of data employing interpolation with compensation of signal asymmetry
Method and apparatus for maximum likelihood detection of data employing interpolation with compensation of signal asymmetry
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机译:利用具有信号不对称性补偿的内插法进行数据最大似然检测的方法和装置
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摘要
A method and apparatus are disclosed for detecting data, such as a sample sequence read from a recording channel. Interpolation techniques are employed to generate one or more interpolated sample sequences from the data. Each interpolated sample sequence has a different corresponding phase relative to the data. A distance measure is generated between a portion of each interpolated sample sequence and an ideal sample sequence. The ideal sample sequence corresponds to peaks in the data. According to one aspect of the invention, a signal asymmetry measure is computed for the portion of each sample sequence and is used to adjust an ideal sample sequence.
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