This paper presents an improved adaptive feedforward compensation (AFC) technique for periodic disturbance cancellation. It has a better rate of convergence than AFC. It can also compensate for a particular harmonic without amplifying the adjacent uncompensated harmonics. A frequency domain design strategy is proposed. The results are verified both through simulations and by an experiment on a disk drive with a dedicated servo channel
Published in:
Magnetics, IEEE Transactions on
(Volume:32
,
Issue:
5
)
Date of Publication: Sep 1996