DocumentCode
1423670
Title
Customizable coherent servo demodulation for disk drives
Author
Abramovitch, Daniel Y.
Author_Institution
Storage Technol. Dept., Hewlett-Packard Co., Palo Alto, CA, USA
Volume
3
Issue
3
fYear
1998
fDate
9/1/1998 12:00:00 AM
Firstpage
184
Lastpage
193
Abstract
This paper describes a servo demodulator which provides greatly improved performance over the currently used servo demodulation methods for disk drives. The demodulation algorithm proposed here makes better use of knowledge about the readback signal coming from the disk to provide better noise immunity and more immunity to other nonidealities in the magnetic head response. The net result is a demodulated position error signal which has a much cleaner response
Keywords
demodulation; drives; hard discs; position control; servomechanisms; signal processing; PES Pareto; coherent demodulation; hard disk drives; magnetic head response; noise immunity; position error signals; readback signal; servo demodulation; Data mining; Demodulation; Disk drives; Frequency; Hardware; Magnetic heads; Magnetic noise; Power harmonic filters; Servomechanisms; Signal processing;
fLanguage
English
Journal_Title
Mechatronics, IEEE/ASME Transactions on
Publisher
ieee
ISSN
1083-4435
Type
jour
DOI
10.1109/3516.712114
Filename
712114
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