MONCROS 6.2.10

12.1. Far Field

Using this menu it is possible to analyze the amplitudes in the Far Field through the observation directions previously defined in the Output section.

Far Field Menu

The following options are available:

  • View Cuts: Displays a plot that relates the amplitude against a theta cut or a phi cut.
  • View Cuts by Frequency: displays a plot that relates the amplitude against a frequency sweep.
  • View Cuts by Step: displays a plot that relates the amplitude against a parametric step.
  • View Text Files: displays the numeric results gathered by the simulation process.

12.1.1. View Cuts

This option is used to analyze information about the calculated 2D Far Fields using the observation directions previously created in the Output menu. When selecting this option, a panel similar to the one presented in the figure will be displayed:

View Cuts panel. Linear plot

This command plots the amplitude or the phase of the RCS computed for each angular cut. Several cuts and frequencies can be plotted in the same graphic. To plot a graph, the user must select the RCS component, the frequency and the cut. The user can press the button “Add Series” to plot the new graph. In the case that the user has set up a parametrized geometry (see the Geometry User Guide for details), it is possible to select the step to visualize the results for.

It is also possible to delete the selected trace of the list with the “Remove Series“. The display option allows to change the color of the series and display points. The buttons “Import Series“ and “Export Series“ are used for importing and exporting the selected series in “List of Series“ to a datatext file.

The user can also switch between the linear graph and the polar graph to visualize far field results.

View Cuts panel. Polar plot

12.1.2. View Cuts By Frequency

This kind of plot can be used to compare the amplitude measurements made by the simulation process for a particular component, step, cut and point in the sweep, against a simulation frequency. This option is useful when the user has selected a frequency sweep in the Simulation Settings, in order to inspect how the measurements for a particular observation point change through a frequency sweep.

When this option is chosen from the Show Results > Far Field > View Cuts By Frequency menu, the panel presented in the figure below will appear.

View Cuts by Frequency

  View Cuts By Frequency panel 

Similar to the behaviour of the standard Far Field chart, this panel displays a plot with the results, and several options for adding and removing extra series from the plot.

When initially open, the panel will display a default series in the plot that will represent the measurements for a particular component, step, and observation point in a phi or theta cut, against every possible frequency that has been simulated. More series can be added, by selecting component, step and spherical coordinates in the control panel that appears leftside to the plot.

  • Component: the plane wave component to inspect. Select one of the possible values: Eθ, Eφ or Et.
  • Step: the parametric step to select. These should have been defined prior to the calculation when designing the simulation.
  • Theta cut / Phi cut: select one of the theta cuts or phi cuts that were previously added to the project.
  • Point: select a particular observation point in the cut selected before.

The selected series can be added to the plot by pressing the Add Series button. It is also possible to modify the look and delete series previously added to the chart. You can change the color of a particular series by selecting it in the list and pressing the Change Colors. To remove a series from the plot representation, press the Remove series button.

Series can be imported and exported. To save a series press the Export series button. Later it is possible to load previously exported series by pressing the Import Series button and locating the file where the results were saved in.

12.1.3. View Cuts By Step

This kind of plot lets the user analyze RCS measurements made by the simulation provess for a particular component, frequency, theta or phi cut and observation point against the parametric steps defined in the project. This option is useful when the user has parametrized a simulation by adding parameters and making objects such as geometries depend on the parameters themselves.

When this option is chosen from the Show Results > Far Field > View Cuts by Steps menu, the panel presented below will appear:

View Cuts by Step

Far Field by Step

Similar to the behaviour of the standard Far Field chart, this panel displays a plot with the results and a control panel where the user can add, modify and remove series that are then displayed in the chart. A default series will be added automatically to the plot, but the user can add new series by modifying the values in the control panel and pressing Add Series for adding the series to the panel. The following settings can be modified:

  • Component: the plane wave component to inspect. Select one of the possible values: Eθ, Eφ or Et.
  • Frequency: if a frequency sweep has been made, multiple frequencies may be available for selection.
  • Cuts on phi / Cuts on theta: select one of the cuts that were previously added as observation points to the project.
  • Point: select one of the samples made for this observation direction.

The selected series can be added to the plot by pressing the Add Series button. It is also possible to modify the look and delete series previously added to the chart. You can change the color of a particular series by selecting it in the list and pressing the Change Colors. To remove a series from the plot representation, press the Remove series button.

Series can be imported and exported. To save a series press the Export series button. Later it is possible to load previously exported series by pressing the Import Series button and locating the file where the results were saved in.

12.1.4. View Text Files

This option lets the user inspect the results of the Far Field RCS values in a tabular like structure. Selecting this option will display a panel where the user should select a step and a frequency. To use this section, select a parametric step from the list, and select the frequency to get the results from and press OK to load the data. A table will be presented with the values for this frequency and step. To save the results press the Export button below the table.

 View Text Files panel

Select a frequency on the list and press Ok. The following tab in the central panel will show up with the results in text format:

Viewing results in text format

If Monostatic RCS is enabled, the “Monostatic RCS-Frequency Files” option appears. If this option is selected, the program generates the text file showing the result for the RCS-Frequency cuts, visualizing the RCS values for each combination of frequencies and angular cut.

 Viewing RCS-Frequency cuts data in text format

We use cookies on this website to improve your navigation experience on this site. By using this site, you agree to our cookie policy.

I agree