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EM.Terrano

35 bytes added, 17:59, 11 January 2021
/* The "Almost Real-Time" Polarimatrix Solver */
EM.Terrano provides a number of different simulation or solver types:
* 3D Field Solver* SBR Ray TracerChannel Analyzer* Log-Haul Channel Analyzer* Polarimatrix Communication Link Solver* Radar Simulator Link Solver
The first three simulation types are described below. For a description of EM.Terrano's Radar Simulator, follow this link.
To perform a polarimatric channel characterization of your propagation scene, open EM.Terrano's Run Simulation dialog and select '''Channel Analyzer''' from the drop-down list labeled '''Select Simulation or Solver Type'''. At the end of the simulation, a large ray database is generated with two data files called "sbr_channel_matrix.DAT" and "sbr_ray_path.DAT". The former file contains the delay, angles of arrival and departure and complex-valued elements of the channel matrix for all the individual rays that leave each transmitter and arrive at each receiver. The latter file contains the geometric aspects of each ray such as hit point coordinates.
=== The "Almost Near Real-Time" Polarimatrix Solver ===
After EM.Terrano's channel analyzer generates a ray database that characterizes your propagation channel polarimetrically for all the combinations of transmitter and receiver locations, a ray tracing solution of the propagation problem can readily be found in almost real time by incorporating the effects of the radiation patterns of transmit and receive antennas. This is done using the '''Polarimatrix Solver''', which is the third option of the drop-down list labeled '''Select Simulation or Solver Type''' in EM.Terrano's Run Simulation dialog. The results of the Polarimatrix and 3D SBR solvers must be identical from a theoretical point of view. However, there might be small discrepancies between the two solutions due to roundoff errors.
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