A fully automated flowgraph analysis tool for Matlab

In this paper, a fully automated flowgraph analysis tool using Matlab's symbolic and signal processing toolbox is presented. The goal was to construct an analysis tool for both continuous- and discrete-time systems. From a simple textual nodelist model one can easily generate one or several transfer functions between any nodes and apply the result to control system analysis. Such a versatile tool can be applied to filter design, delta-sigma modulator analysis or even reflection analysis s-parameter measurements in RF techniques and in optics. The tool is easy to customize to a given need and some design examples are presented in this paper.