Proceedings of the Japan Joint Automatic Control Conference
47th Proceedings of the Japan Joint Automatic Control Conference
Session ID : 803
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Host: The Japan Society of Mechanical Engineers, The Society of Instrument and Control Engineers, The Institute of Systems, Control and Information Engineers, The Society of Chemical Engineers, Japan, The Japan Society for Precision Engineering, The Japan Society for Aeronautical and Space Sciences

Co-host: Technically Cosponsored by 43 Socies and Institutes

Multirate Notch Filter Design for Hard Disk Drives Based on the Frequency Response Matrix of Linear Periodic Time-Varying System
*Takeyori Hara
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Abstract
Multirate controllers are widely used for Hard Disk Drives. However, the conventional formulation based on the multirate lifting technique can not express the characteristics over the Nyquist frequency. We propose a new approach for multirate notch filter design considering the margins explicitly by introdusing a virtual sampling point which enables frequency analysis over the Nyquist frequency.
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© 2004 JACC Organizing Committee
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