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Proceedings Paper

Track count estimator for DVD and CDROM
Author(s): James M. Graba
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Paper Abstract

An estimator is shown to accurately count tracks during a seek in a DVD or CDROM storage device. The estimator states are position and velocity. Although the gains can be adapted via the recursive Kalman equations, the track count accuracy suffers little degradation if the gains are fixed. The position estimate's bandwidth can be matched to the seek system poles affording optimum filtering. Although the input is a nonlinear function of position, the estimator is constructed in such a way as to maintain linearity.

Paper Details

Date Published: 23 October 1998
PDF: 8 pages
Proc. SPIE 3401, Optical Data Storage '98, (23 October 1998); doi: 10.1117/12.327938
Show Author Affiliations
James M. Graba, Cirrus Logic, Inc. (United States)

Published in SPIE Proceedings Vol. 3401:
Optical Data Storage '98
Shigeo R. Kubota; Tomas D. Milster; Paul J. Wehrenberg, Editor(s)

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