In this example, the Monostatic RCS of a plane is calculated. The normal vectors of the geometry are duplicated for this simulation.
Start newFASANT window
Select File and click on New.
Method Type selection
Click on Geometry→Surface →Plane, which introduces the first and the second point dialogue as shown in the next Figure.
In this example the user enters the following parameters into the command line:
· First corner of plane: -0.5 -0.5 0
· Plane size [width depth]: 1 1
Create plane command
Click on Simulation → Parameters.
On the top left side of the newFASANTwindowenter the desired parameters for this simulation, as shown in next Figure.
Simulation Parameters Menu
Select 1 bounce (simple reflection) and a frequency of 0.3 GHz as shown and left-click the Save button.
Simulation Parameters panel
Select RCS → Parameters.
This command appears in the top left side of the newFASANT window as shown in the next Figure.
Select Monostatic RCS only, and left-click on the Save button.
RCS Parameters panel
Select Output and left-click on Observation Directions.
Observation Directions Menu
Introduce the far-field observations (cuts, points and sweep angles), as shown in the next Figure and left-click on the Save button.
Observation Directions panel
Before running the case, select Meshing → Create Mesh.
Meshing Parameters Menu
Select 1 processor and define the curvature mesh option with a distance error of 10 and surface error of 0.08 and left-click on Mesh.
Meshing Parameters panel
Left-clicking on Mesh enables the meshing engine as shown in the next Figure:
In order to visualize the mesh, then Meshing-->Visualize Existing Meshing and select the .msh file.
Select Calculate → Execute and then indicate the a number of processors available to simulate this case.
When the simulation finishes, we can visualize the simulation results. Click on Show Results → Far Field → View Cuts, which allows the user to show the RCS graphic (in the next figure).
Far Field View Cuts Menu
Click on Show Results → Far Field → View Text Files. Then select the Steps and the order and press OK to show the RCS data file.
Far Field View Text File panel
Result Text File visualization
This example has been executed using a plane whose normal vector is along the Z-axis. The user can duplicate this vector and simulate the problem again using duplicate normal vectors. After the simulation, the user can visualize the results to see the differences between one normal vector and two duplicated normal vectors. To view the normal vectors of this geometry, click the icon , as shown in the next Figure.
Appearance Normals visualization
To duplicate the normal vectors click on Simulation → Duplicate Normals.
Duplicate Normals Menu
Then select the object to duplicate the normal vector and left-click the Add button in the right panel that has appeared.
Duplicated Normals visualization
Re-mesh the geometry and start the simulation again, like in step 12 and 13. The process is simply the same.
Click on Show Results → Far Field → View Cuts, to show the RCS graphic like in step 14. In this case, we can notice that the result is different.