Radio Telescope Control Systems

i am researching on a radio telescope control system, including position and speed control by two ac drives, i have some ref. but not enough to me.

if any one has any information or mathematical or simulink/matlab model i'll be very grateful for you.

i am trying to develop my research in labview, i'd did it in simulation/labview. but now i'm need to make more with modern control methods.

i need several models to compare between them and re-instruct there control systems.

if any one is interesting to know more about that, we'll be on touch.

thanks for all,