Abstract
Optical disk drives require a radial tracking error signal to control a radial actuator. This actuator is used to follow track runout introduced by respindling the media platter and nonrepeatable spindle runout. The error signal can be optically derived by a variety of methods.1 This paper represents a method of simulating the radial error signal resulting from several different optical tracking methods as an aid to design evaluation and tolerance analysis.
© 1985 Optical Society of America
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