Performance Improvement of a Feedback Control System Using an Accelerometer-Enhanced Velocity Observer
Keywords:accelerometer, feedback control system, linear motion stage, velocity estimator, velocity observer
The paper shows how an accelerometer- enhanced velocity estimator can be used to improve the tracking performance of a feedback control system. In contrast to conventional velocity estimators that use positional information only, the accelerometer-enhanced velocity estimator fuses the position sensor and the accelerometer together to produce an improved velocity estimation. Experimental results are presented to show the effectiveness of the accelerometer-enhanced velocity estimator on improving the tracking performance of a linear motion stage.
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