Mu Analysis and Synthesis Toolbox

A graphical user interface for time simulations of linear fractional transformations

Syntax

• simgui
  

Description
simgui provides the ability to simulate linear fractional models and plot their responses. The standard linear fractional model considered is shown below:

The P block corresponds to the open-loop plant interconnection model, referred to as Plant in simgui. The K block corresponds to a state-space controller, Controller in simgui. The block corresponds to the perturbation to the model, Perturbation in simgui. The Input Signal to the time simulation is denoted by U in the figure. The individual systems are formed using the starp command. The time simulation outputs available for plotting correspond to the variable Y. Three types of simulation are possible: continuous-time using trsp, discrete-time using dtrsp, and sample-data using sdtrsp.

simgui has two interface windows and up to six plot windows:

• Main Simulation window, which is the main interface for the user.
• Parameter window, which is used to modify properties of the time simulation, such as the final time, integration step size, initial conditions, and which variables are automatically exported to the workspace.
• Plot windows, where the plots of time responses are displayed. You can open up to six of these windows.

Examples
An example of using simgui for simulation of a linear fractional transformation is shown in the "LFT Time Simulation User Interface Tool: simgui" section in Chapter 6.

See Also
dtrsp, sdtrsp, starp, trsp, vplot

siggen

spoles