Invention Grant
US08891199B2 Robust metric computation of longitudinal position (LPOS) data symbol detection 有权
纵向位置(LPOS)数据符号检测的鲁棒度量计算

Robust metric computation of longitudinal position (LPOS) data symbol detection
Abstract:
An apparatus according to one embodiment includes a digital correlator configured to compute a correlation signal between a sequence of samples of a readback servo signal and a reference waveform. A timing reference module is configured to provide a reference timing model comprising one or more interpolation instants to the digital correlator, wherein the correlation signal determined at each interpolation instant yields a detection metric for one data symbol. A correlation interpolator is configured to interpolate the correlation signal at the interpolation instants and compute a longitudinal position (LPOS) detection metric according to the interpolated correlation signal samples.
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