On the Velocity and Acceleration Estimation from Discrete Time-Position Signal of Linear Encoders

Abstract

In this work is addressed the topic of estimation of velocity and acceleration from time position data. It is presented a review of several classic methods and implemented with real position data from a low cost digital encoder of a hydraulic linear actuator. The results are analyzed and compared. It is shown that static method has a limited bandwidth application, and that the performance of some method may be enhanced by providing adaptability to the method.