With a contribution by
Scott Cooper, Mentor Graphics Corporation
This case study highlights VHDL-AMS as a mixed-technology, mixed-domain modeling language by focusing on the RC airplane rudder and servo control system (rudder system). We first implement the rudder system exclusively in the s-domain. After verifying top-level system requirements, we then refine most of the system to use conservation-based electromechanical components in which we model true physical characteristics of the system. Finally, we realize the servo compensator in the z-domain, so that it can be implemented as software rather than hardware.
As noted in the Preface, the case studies ...