2006 American Control Conference 2006
DOI: 10.1109/acc.2006.1656514
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Modeling and control for self-servowriting in hard disk drives: a repetitive process approach

Abstract: This paper considers modeling and correction signal design for self servowriting in disk drives. Self-servowriting is a process whereby the position and timing burst information are written on the disk surface by using the servo information from a previously written track as a reference (seed) for writing the burst information on a subsequent track, and repeating the process. An obstacle to this process is radial error propagation, whereby the distortion in the successive written tracks builds up. In this pape… Show more

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Cited by 9 publications
(8 citation statements)
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“…The general steps for SSW process were described by Melkote and McNab [3] and Wu and Tomizuka [4], among others.…”
Section: A Radial Error Propagation (Rep)mentioning
confidence: 99%
See 1 more Smart Citation
“…The general steps for SSW process were described by Melkote and McNab [3] and Wu and Tomizuka [4], among others.…”
Section: A Radial Error Propagation (Rep)mentioning
confidence: 99%
“…See Ye et al [1], and Melkote et al [2] among others for further details. Iterative Learning Control (ILC) based control structure (Melkote and McNab [3], Wu and Tomizuka [4]) has been proved to be an effective approach to contain the radial error propagation.…”
Section: Introductionmentioning
confidence: 99%
“…Disk drives are embedded servo systems [4], [5] where the position burst information of the tracks is written onto the surface of the disk by a process known as servo trackwriting (or servowriting for short). The burst information is demodulated to determine position off-track information that is then used by the servo system to track follow, or seek, a target track.…”
Section: Self-servowriting In Disk Drives -A Discrete Linear Repmentioning
confidence: 99%
“…In this paper we first draw on preliminary work in [4], [5] to describe a relatively new application of repetitive processes in the modeling and control of self-servowriting in disk drives. This will establish the need to consider a new model for these processes in order to include dynamics which are critical to this application but are not included in any of the models considered previously.…”
Section: Introductionmentioning
confidence: 99%
“…Some researchers (see Ye et al [2002], Melkote and McNab [2006]) have formulated the problem into a similar manner and provided heuristic design methods. In this paper, we propose an ILC based scheme and establish a systematic framework for the compensator design.…”
Section: Introductionmentioning
confidence: 99%