The possibility of rejecting torque disturbances that degrade the pointing and tracking accuracy of electromechanical pedestals and general two-axis systems used for target acquisition and robotics is discussed. Torque rejection achieved through disturbance estimation and compensation results in a vast improvement in pointing accuracy. For the class of disturbances considered, comparisons of a classical loop configuration of a tracker, modeled as a two-mass system, with the state-space solution indicate that at least an order-of-magnitude improvement in tracking error can be achieved.<>
Torque disturbance rejection in high accuracy tracking systems
IEEE Transactions on Aerospace and Electronic Systems ; 26 , 2 ; 232-287
1990-03-01
567613 byte
Article (Journal)
Electronic Resource
English
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