How do you compute received power for a volumetric analysis?

This quick example describes how to define airspace around a ship emitter and compute received power at each grid point in that airspace by using Spatial Analysis in STK.

1. Create a ship () with a complex transmitter ().
2. Define the antenna pattern.
3. Create an area target () around the ship and use the area target to define the AirSpace volume. Name the area target AirSpace.

Create an aircraft with a receiver

1. Create an aircraft ().
2. Attach a receiver () to the aircraft. The receiver will define the receiver on each of the airspace grid points. STK does not use the position of the aircraft when populating the grid points of the airspace.

Compute access

1. Compute access between the aircraft receiver and the ship transmitter using the access tool ().

Use Analysis Workbench to create a scalar calculation

1. From the Analysis menu, select Analysis Workbench (). Select the Calculation tab and create a Data Element type Scalar Calculation on the access object.
2. Open the Link Information Data Provider and assign the Carrier Power at Receiver Input or Received Isotropic Power.
3. On the receiver object in Analysis Workbench on the Spatial Analysis tab, create a spatial calculation of type Scalar At Location based on the Received Power scalar calculation.

Create a Volumetric object

1. Create a Volumetric object ().
2. Use the Volumetric Object () to define the Volume Grid and use the Received Power Spatial Calculation for the Spatial Calculation.
3. Right-click the Volumetric Object () to open its properties.
4. Select the 3D Graphics - Volume properties to display the Spatial Calculation levels.