</tr>
</table>
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=== Output Data Files ===
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[[Image:prop_run8_tn.png|thumb|700px|A typical SBR output data file.]]
At the end of an SBR simulation, EM.Terrano writes a number of ASCII data files to your project folder. The main output data file is called "sbr_results.RTOUT". This file contains all the information about individual receivers and the [[parameters]] of each ray that is received by each individual receiver.
At the end of an SBR simulation, the results are written into a main output data file with the reserved name of SBR_Results.RTOUT. This file has the following format:
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Each receiver line has the following information:
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* Receiver ID
* Receiver X, Y , Z coordinates
* Total received power in dBm
* Total number of received rays
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Each rays line received by a receiver has the following information:
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* Ray Index
* Delay in nsec
* θ and φ Angles of Arrival in deg
* θ and φ Angles of Departure in deg
* Real and imaginary parts of the three E<sub>x</sub>, E<sub>y</sub>, E<sub>z</sub> components
* Number of ray hit points
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The angles of arrival are the θ and φ angles of a received ray measured in degrees and are referenced in the spherical coordinate systems centered at the location of the receiver. The angles of departure for a received ray are the θ and φ angles of the originating transmitter ray, measured in degrees and referenced in the spherical coordinate systems centered at the location of the active transmitter, which eventually arrives at the receiver. The total time delay is measured in nanoseconds between t = 0 nsec at the time of launch from the transmitter location till being received at the receiver location. The last four columns show the real and imaginary parts of the received electric fields with vertical and horizontal polarizations, respectively. The complex field values are normalized in a way that when their magnitude is squared, it equals the received ray power. If the active transmitter is an isotropic radiator with either a vertical or horizontal polarization, then the field components corresponding to the other polarization will have zero entries in the output data file.
=== Plotting Other Simulation Results ===
At the end of an SBR simulationBesides "sbr_results.out", EM.Terrano writes a number of other ASCII data files to your project folder. These include:Â * '''Path Loss''': The main output channel path loss is defined as PL = P<sub>r</sub> - EIRP. The path loss data are stored in a file is called "sbr_resultsSBR_receiver_set_name_PATHLOSS.outDAT"as a function of the receiver index. The path loss data make sense only if your receiver set has the default isotropic radiator. * '''Power Delay Profile''': The delays of the individual rays received by the selected receiver with respect to the transmitter are expressed in ns and tabulated together with the power of each ray in the file "SBR_receiver_set_name_DELAY.DAT". You can plot these data from the Data Manager as a bar chart called the power delay profile. The ray power is subtracted
Besides visualizing the coverage map and received rays in the [[EM.Cube|EM.CUBE]]'s [[Propagation Module]], you can also plot the '''Path Loss''' of all the receivers belonging to a receiver set as well as the '''Power Delay Profile''' of individual receivers. To plot these data, go the '''Observables''' section of the Navigation Tree and right click on the '''Receivers''' item. From the context menu, select '''Plot Path Loss''' or '''Plot Power Delay Profile''', respectively. The path loss data between the active transmitter and all the receivers belonging to a receiver set are plotted on a Cartesian graph. The horizontal axis of this graph represents the index of the receiver. Power Delay Profile is a bar chart that plots the power of individual rays received by the currently selected receiver versus their time delay. If there is a line of sight (LOS) between a transmitter and receiver, the LOS ray will have the smallest delay and therefore will appear first in the bar chart. Sometimes you may have several rays arriving at a receiver at the same time, i.e. all with the same delay, but with different power level. These will appear as stacked bars in the chart.
</tr>
</table>
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=== Output Data Files ===
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At the end of an SBR simulation, the results are written into a main output data file with the reserved name of SBR_Results.RTOUT. This file has the following format:
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NEW LINE:
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* Receiver Number
* Receiver Base X, Y , Z Coordinates
* Receiver Height
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NEW LINE:
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Number of Rays
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NEW LINE:
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* Ray Number
* θ and φ Angles of Arrival in deg
* θ and φ Angles of Departure in deg
* Delay in nsec
* Real(E<sup>V</sup>) & Imag(E<sup>V</sup>)
* Real(E<sup>H</sup>) & Imag(E<sup>H</sup>)
* Real('''E.e<sub>R</sub>''') & Imag('''E.e<sub>R</sub>''')
* Power
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The angles of arrival are the θ and φ angles of a received ray measured in degrees and are referenced in the spherical coordinate systems centered at the location of the receiver. The angles of departure for a received ray are the θ and φ angles of the originating transmitter ray, measured in degrees and referenced in the spherical coordinate systems centered at the location of the active transmitter, which eventually arrives at the receiver. The total time delay is measured in nanoseconds between t = 0 nsec at the time of launch from the transmitter location till being received at the receiver location. The last four columns show the real and imaginary parts of the received electric fields with vertical and horizontal polarizations, respectively. The complex field values are normalized in a way that when their magnitude is squared, it equals the received ray power. If the active transmitter is an isotropic radiator with either a vertical or horizontal polarization, then the field components corresponding to the other polarization will have zero entries in the output data file.
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[[File:prop_run8_tn.png|800px]]
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Figure: A typical SBR output data file.
=== Statistical Analysis of Propagation Scene ===