Linear System Editor
The linear system editor is a specialized tool for the design
and analysis of linear systems. The editor supports continuous-time
and discrete-time SISO systems using various representations.
The graphical interface allows you to edit a linear system in
any desired form: ABCD state space, Transfer Function or Zero
Pole Gain. Analyzing the Step response, Bode plot, Nyquist diagram,
Nichols chart and Pole-Zero plots allows you to quickly evaluate
system behavior. Phase, gain and modulus margins are calculated,
as well as rise time, overshoot and steady state value.
Input can originate from a 20-sim linear system model, 20-sim
filter or control editor, MATLAB workspace, or user input. You
are able to generate output for all 20-sim editors, the clipboard
and the MATLAB workspace.
Fast Fourier Transform
Fast Fourier Transforms (FFT) can be applied to any time-domain
plot in 20-sim. Either simulation results or measurement data
will do. When the data is not equally spaced, linear interpolation
is first applied after which the Fast Fourier Transform is used
to calculate the frequency contents. Three representations are
supported: Amplitude and Phase plot, Frequency plot and Power
Spectral Density plot.
Linearization
Any 20-sim model can be linearized to state space form. If possible,
linearization will be performed symbolically. Otherwise linearization
will be performed numerically.
The resulting state space model is shown in the 20-sim Linear
System Editor. The Linear System Editor is a specialized tool
for the design and analysis of linear systems. The editor supports
continuous-time and discrete-time SISO systems using various representations.
Standardized plots enable you to quickly evaluate system behavior.
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