A general frequency dependent digital optimal preview servo system (Q1914600)

A method for designing the frequency characteristic of a servo system in a closed-loop is presented. The initial space state system of equations is transformed into an enlarged one by use of a recurrent algorithm. An example of application is given for an air slide linear motor via a simulation. The results which were obtained confirm the validity of the proposed method. Unfortunately, the main ideas of the paper are not very clearly explained and the terminology looks unusual and strange.