Disk drive employing repeatable disturbance compensation for fly height control
作者： Min Chen , Hain-Ling Liu , Soo-Choon Kang
DOI:
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摘要: A disk drive is disclosed comprising a disk, head actuated over the and control circuitry operable to generate fly height signal. of measured, measured combined with target feedforward signal, wherein signal generated according to: a 1 ·cos(2πn k/N)+b ·sin(2πn k/N) where b are coefficients 2πn k/N represents frequency repeatable disturbance in head.
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