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Precision motor control system for VCR using disturbance and velocity observer

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3 Author(s)
Nagasawa, M. ; Mitsubishi Electric Corp., Kyoto, Japan ; Yokoyama, E. ; Ishida, M.

A high performance VCR motor servo system is described. The system eliminates wow and flutter and improves control capacity. Specifically, a method of motor control composed of an acceleration controller and a sensor noise reduction system using disturbance and velocity observers has been developed. The results of this development are a reduction in wow-flutter of nearly 20 dB measured at the capstan motor and 10 dB measured at the drum motor. In addition, high band disturbance estimation using the velocity observer's noise-reduction system permitted the design of a robust system using disturbance compensation

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Consumer Electronics, IEEE Transactions on  (Volume:38 ,  Issue: 4 )