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A trajectory tracking control scheme for the main rotor speed in an electrically powered helicopter prototype is presented. The scheme is based on the concept of differentially flat systems which makes use of a rotor model obtained with the help of an appropriate design and implementation of sensors and actuators. Experimental results are presented where the performance of the control scheme is evaluated
As the track density on hard disk drives increases, more accurate track following performance is required. This paper addresses a disturbance observer design for enhanced tracking accuracy in HDD. This work proposes a new compensation scheme using accelerometer. By feeding back acceleration signal of actuator, input-output disturbances are estimated in real time. From the correlation analysis between...
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