PO 6.2.9

14.2. Example 2

In this example, the Bistatic RCS of a flare is calculated using a frequency sweep from 0.4 GHz to 0.6 GHz (400 MHz to 600 MHz).

 

Step 1

Create a new project usingSTEP 1 to 5 discussed in Example1 above.

 

Step 2

Click on Geometry → Solid →Flare.

 

Create flare command

 

Step 3

Enter the following parameters to define the flare in the command line as shown in the next Figure:

·         First corner of base [x y z]:   -0.5   -1    0

·         Base size [width depth]:     1 2

·         Height:   2

·         First corner of top [x y]:    -0.25   -0.25 

·         Top size [width depth]:   0.5    0.5

 

Flare Parameters box 

 

Step 4 

Select Simulation → Parameters. Select 1 bounce (simple reflection), and define the diffraction and a frequency sweep from 0.4E9 Hz to 0.6E9 Hz (400 MHz to 600 MHz) as shown in the next Figure, and left-click on Save button.

 

Simulation Parameters panel 

 

Step 5 

Select RCS →Parameters. Define the parameters as shown in the following Figure, and left-click the Save button.

 

RCS Parameters panel

  

Step 6 

Select Output and left-click on Observation directions. Define the parameters as shown in the next Figure, and left-click the Save button.

Observation Directions panel

 

 

Step 7 

Select Meshing → Create Mesh. Define the parameters as shown in the next Figure, and left-click the Mesh button.

Mesh process

  

 

Mesh process

 

 

Step 8

Then select Calculate → Execute and enter the number of processors to be used in this simulation.

 

Execute Parameters panel 

 

Step 9 

Select Show Results → Far Field → View Cuts.

RCS Graphic 

Step 10 

Select Show Results → Far Field → View Text Files.

 

Text Files panel 

 

Result Text File visualization

 

 

Step 11 

Select Materials→Add to add a new material to the simulation in the new panel shown at the right side of the window.

 

Add Material Parameters box

 

 

Then select the “Material defined by Geometry” option and also left-click the “Set Parameters” button to define the material properties as shown in the next Figure. Press Save.

 

Material defined by geometry Properties box

 

 

Step 12

Select Material → Assign to assign the new material properties to the geometry. Select the object and left-click the “Assign” button as shown in the next Figure. 

 Material Assign object selection

 

Step13 

Re-mesh the geometry and run the simulation again. Then open the new RCS results shown in the next Figure.

 

RCS Graphic

 

 

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