== Running Ray Tracing Simulations in EM.Terrano ==
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EM.Terrano provides a number of different simulation or solver types:
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* 3D SBR Ray Tracer
* Channel Analyzer
* Polarimatrix Solver
* Radar Simulator
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The first three simulation types are described below. For a description of EM.Terrano's Radar Simulator, follow this link.
=== Running a Single-Frequency SBR Analysis ===
EM.Terrano provides a number of different solvers and simulation modes. Its main solver is the '''3D SBR Ray Tracer'''. Once you have set up your propagation scene in EM.Terrano and have defined sources/transmitters and observables/receivers for your scene, you are ready to run a SBR ray tracing simulation. You set the simulation mode in EM.Terrano's simulation run dialog. A single-frequency SBR analysis is a single-run simulation and the simplest type of ray tracing simulation in EM.Terrano. It involves the following steps:
* Set the units of your project and the frequency of operation. Note that the default project unit is '''millimeter'''. Wireless propagation problems usually require meter, mile or kilometer as the project unit.
! scope="col"| Simulation Mode
! scope="col"| Usage
! scope="col"| Which Solver?! scope="col"| Number of Engine Simulation Runs
! scope="col"| Frequency
! scope="col"| Restrictions
| style="width:120px;" | [[#Running a Single-Frequency SBR Analysis | Single-Frequency Analysis]]
| style="width:250px;" | Simulates the propagation scene "As Is"
| style="width:250px;" | SBR, Channel Analyzer, Polarimatrix, Radar Simulator
| style="width:100px;" | Single run
| style="width:150px;" | Runs at the center frequency fc
| style="width:120px;" | [[Parametric_Modeling_%26_Simulation_Modes_in_EM.Cube#Running_Frequency_Sweep_Simulations_in_EM.Cube | Frequency Sweep]]
| style="width:250px;" | Varies the operating frequency of the ray tracer
| style="width:250px;" | SBR, Channel Analyzer, Polarimatrix, Radar Simulator
| style="width:100px;" | Single ray tracing run, multiple frequency computations
| style="width:150px;" | Runs at a specified set of frequency samples
| style="width:120px;" | [[Parametric_Modeling_%26_Simulation_Modes_in_EM.Cube#Running_Parametric_Sweep_Simulations_in_EM.Cube | Parametric Sweep]]
| style="width:250px;" | Varies the value(s) of one or more project variables
| style="width:250px;" | SBR
| style="width:100px;" | Multiple runs
| style="width:150px;" | Runs at the center frequency fc
| style="width:100px;" | None
|-
| style="width:120px;" | [[Parametric_Modeling_%26_Simulation_Modes_in_EM.Cube#Running_Parametric_Sweep_Simulations_in_EM.Cube | Transmitter Sweep]]
| style="width:250px;" | Activates two or more transmitters sequentially with only one transmitter broadcasting at each simulation run
| style="width:250px;" | Polarimatrix
| style="width:100px;" | Multiple runs
| style="width:150px;" | Runs at the center frequency fc