Development of an Interactive Computer Aided Design Program for Digital and Continuous Control System Analysis and Synthesis

摘要

This report details the development of an interactive computer aided design package for digital and continuous control system analysis and synthesis. The baseline from which the new package is developed is an existing computer aided design package originally developed and hosted on a Control Data Corporation CYBER computer. A detailed analysis of the existing computer aided design package is provided. Structured analysis, structured design, and top-down design techniques are employed to design a modular program structure consisting of an executive, interactive user interface, processor (control system algorithms), and an output driver. An incremental top-down technique along with structured programming is used to implement the top-level structure of the new computer aided design package and a portion of the interactive user interface. The report also describes modifications to the existing package required to rehost it on a Digital Equipment Corporation VAX-11/780 computer in a virtual memory environment. (Author)