| Getting Started |
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Analyzing Models
This chapter discusses the following topics:
- LTI Viewer -- A graphical user interface (GUI) that simplifies the analysis of linear, time-invariant systems.
- Functions for Time and Frequency Response -- Plotting time and frequency responses of linear models. The Control System Toolbox commands provide an open and extensible environment for the analysis of control systems. You can use these commands when you need more flexibility than the LTI Viewer provides.
- Simulink LTI Viewer -- A GUI for use with Simulink. You can use this tool to linearize models or parts of models, analyze linearized models, and compare linear and nonlinear models.
The LTI Viewer is a GUI for viewing and manipulating the response plots of linear models. You can display the following plot types for linear models using the LTI Viewer:
- Step and impulse responses
- Bode and Nyquist plots
- Nichols plots
- Singular values of the frequency response
- Pole/zero plots
- Response to a general input signal
- Unforced response starting from given initial states (only for state-space models)
Note that time responses and pole/zero plots are available only for transfer function, state-space, and zero/pole/gain models.
| Note
The LTI Viewer displays up to six different plot types simultaneously.
You can also analyze the response plots of several linear models at once.
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| | Model Order Reduction | | LTI Viewer | |