Invention Grant
US08902535B1 Disk drive adapting feed-forward compensation using iterative learning control over segments of seek length 有权
磁盘驱动器使用搜索长度段上的迭代学习控制来适应前馈补偿

Disk drive adapting feed-forward compensation using iterative learning control over segments of seek length
Abstract:
A disk drive is disclosed comprising a head actuated over a disk comprising servo information. A position error signal is generated while executing a first plurality of seek operations to seek the head over a seek length, and first feed-forward compensation values are adapted for a first segment of the seek length using an iterative learning control algorithm based on the position error signal. During a second plurality of seeks, second feed-forward compensation values are adapted for a second segment of the seek length using the iterative learning control algorithm based on the position error signal. The servo control system is operable to execute the second plurality of seek operations using the first feed-forward compensation generated for the first segment of the seek length.
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