Acceleration feedforward control against rotational disturbance in hard disk drives

2001 ◽  
Vol 37 (2) ◽  
pp. 888-893 ◽  
Author(s):  
A. Jinzenji ◽  
T. Sasamoto ◽  
K. Aikawa ◽  
S. Yoshida ◽  
K. Aruga
2009 ◽  
Vol 3 (4) ◽  
pp. 411-418 ◽  
Author(s):  
X. Ren ◽  
S.S. Ge ◽  
F.L. Lewis ◽  
T. Liew ◽  
V. Venkataramanan ◽  
...  

Author(s):  
Jinwen Pan ◽  
Prateek Shah ◽  
Roberto Horowitz

A direct adaptive feedforward control method for tracking repeatable runout (RRO) in bit patterned media recording (BPMR) hard disk drives (HDD) is proposed. The technique estimates the system parameters and the residual RRO simultaneously and constructs a feedforward signal based on a known regressor. An improved version of the proposed algorithm to avoid matrix inversion and reduce computation complexity is given. Results for both MATLAB simulation and digital signal processor (DSP) implementation are provided to verify the effectiveness of the proposed algorithm.


2009 ◽  
Vol 45 (7) ◽  
pp. 3025-3030 ◽  
Author(s):  
Xuemei Ren ◽  
F.L. Lewis ◽  
Jingliang Zhang ◽  
S.S. Ge

2011 ◽  
Vol 47 (7) ◽  
pp. 1823-1829 ◽  
Author(s):  
Uwe Boettcher ◽  
Hui Li ◽  
Raymond A. de Callafon ◽  
Frank E. Talke

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