.Modelica_LinearSystems2.WorkInProgress.DiscreteStateSpace.Plot.bodeSISO

Information

Syntax

StateSpace.Plot.plotBodeSISO(ss)
   or
StateSpace.Plot.plotBodeSISO(ss, iu, iy, nPoints, autoRange, f_min, f_max, magnitude=true, phase=true, defaultDiagram=Modelica_LinearSystems2.Internal.DefaultDiagramBodePlot(), device=Modelica_LinearSystems2.Utilities.Plot.Records.Device() )

Description

Plots the bode-diagram of a transfer function.

Description

Function plotBodeSISO plots a bode-diagram of the transfer function corresponding to the behavior of the state space system from iu'th element of the input vector u to the iy'th element of the output vector y.

Example

  Modelica_LinearSystems2.StateSpace ss=Modelica_LinearSystems2.StateSpace(
    A=[-1.0,0.0,0.0; 0.0,-2.0,0.0; 0.0,0.0,-3.0],
    B=[0.0,1.0; 1.0,1.0; -1.0,0.0],
    C=[0.0,1.0,1.0; 1.0,1.0,1.0],
    D=[1.0,0.0; 0.0,1.0])

  Integer iu=1;
  Integer iy=1;

algorithm
  Modelica_LinearSystems2.StateSpace.Plot.plotBodeSISO(ss, iu, iy)
//  gives:

Interface

encapsulated function bodeSISO
  import Modelica;
  import Modelica_LinearSystems2;
  import Modelica_LinearSystems2.WorkInProgress.DiscreteStateSpace;
  import Modelica_LinearSystems2.DiscreteTransferFunction;
  input DiscreteStateSpace dss "discrete state space system";
  input Integer iu = 1 "index of input";
  input Integer iy = 1 "index of output";
  input Integer nPoints(min = 2) = 200 "Number of points";
  input Boolean autoRange = true "True, if abszissa range is automatically determined";
  input Modelica.Units.SI.Frequency f_min = 0.1 "Minimum frequency value, if autoRange = false";
  input Modelica.Units.SI.Frequency f_max = 10 "Maximum frequency value, if autoRange = false";
  input Boolean magnitude = true "= true, to plot the magnitude of dtf" annotation(
    choices(checkBox = true));
  input Boolean phase = true "= true, to plot the phase of tf" annotation(
    choices(checkBox = true));
  extends Modelica_LinearSystems2.Internal.PartialPlotFunction(defaultDiagram = Modelica_LinearSystems2.Internal.DefaultDiagramBodePlot());
end bodeSISO;