Tests and results » History » Version 13
Version 12 (RIBAS MACHADO, Ederson , 03/20/2015 07:19 PM) → Version 13/49 (RIBAS MACHADO, Ederson , 03/20/2015 07:26 PM)
h1. Tests and results
The aim of this part is to demonstrate the proper functioning of the tool. That is, the explanation of how we have shown that the results of all the link budget operations are correct, as well as that the tool is understandable for a user who has never used before.
For that purpose, different test with other students have been carried out. Thus, it has been possible to identify the difficulties of understanding of some aspects. For instance, we have identified some hesitation to understand well what refers each input parameter, and so we could take steps to correct it, and add more explanation in the popup help, or add some diagrams blocks in some tabs in order to have an extra visual aid of the correct placement of each parameter in the process.
h2. Checking results
Below are shown the different verification carried out in each tab in order to verify the correct computation implementation.
h3.Payload
h3. Services
tip. libro y proyecto 2
h3. System Geometry
p=. !{width: 50%}Geometry_ES_Palmeira.png!
p=. !{width: 50%}Geometry_ES_Roma.png!
p=. !{width: 75%}Geometry_test.png!
h3. Uplink
tip. ejemplos libro 5.4.2 y 5.6.2
h3. Payload
h4. Antenna depointing 1
In the payload we have two windows menu. The first is the Antenna and the second the transponder. The window antenna, in turn, has the Depointing 1 and Depointing 2 window. Only the first calculations of depointing were performed in the application, being the total depointing angle computation, an additional feature to be performed in further implementations of _SatLinkTool_. In these first calculations, we have performed the _true view angles_ ($\theta$, $\varphi$), _the satellite antenna azimuth angle_ ($\alpha$) and _satellite antenna elevation angle_ ($\beta$), as well as two auxiliary angles $\alpha$*, $\beta$*. The objective of take this values is to implement in total depointing angle perform.
p=. In order to check if our results are correct, we have compared, using the same inputs values, the results showed in an calculating example of the "Satellite Communications Systems" book (page 496). The figure below show the comparison of the results.
p=. !{width: 110%}antennaresult1.png!
<div style="margin-left: auto; margin-right: auto; width: 50em">*Figure * - Comparison of results. In the left side the input values and results for _SatlinkTool_ and in the right the input and results of an example of calculating, found in the book.
</div>
h4. Payload
h3. Downlink
tip. ejemplos libro 5.4.3 y 5.6.3
h3. Overall link
h1 References
http://www.eutelsat.com/ (Azimuth and Elevation angles)
The aim of this part is to demonstrate the proper functioning of the tool. That is, the explanation of how we have shown that the results of all the link budget operations are correct, as well as that the tool is understandable for a user who has never used before.
For that purpose, different test with other students have been carried out. Thus, it has been possible to identify the difficulties of understanding of some aspects. For instance, we have identified some hesitation to understand well what refers each input parameter, and so we could take steps to correct it, and add more explanation in the popup help, or add some diagrams blocks in some tabs in order to have an extra visual aid of the correct placement of each parameter in the process.
h2. Checking results
Below are shown the different verification carried out in each tab in order to verify the correct computation implementation.
h3.Payload
h3. Services
tip. libro y proyecto 2
h3. System Geometry
p=. !{width: 50%}Geometry_ES_Palmeira.png!
p=. !{width: 50%}Geometry_ES_Roma.png!
p=. !{width: 75%}Geometry_test.png!
h3. Uplink
tip. ejemplos libro 5.4.2 y 5.6.2
h3. Payload
h4. Antenna depointing 1
In the payload we have two windows menu. The first is the Antenna and the second the transponder. The window antenna, in turn, has the Depointing 1 and Depointing 2 window. Only the first calculations of depointing were performed in the application, being the total depointing angle computation, an additional feature to be performed in further implementations of _SatLinkTool_. In these first calculations, we have performed the _true view angles_ ($\theta$, $\varphi$), _the satellite antenna azimuth angle_ ($\alpha$) and _satellite antenna elevation angle_ ($\beta$), as well as two auxiliary angles $\alpha$*, $\beta$*. The objective of take this values is to implement in total depointing angle perform.
p=. In order to check if our results are correct, we have compared, using the same inputs values, the results showed in an calculating example of the "Satellite Communications Systems" book (page 496). The figure below show the comparison of the results.
p=. !{width: 110%}antennaresult1.png!
<div style="margin-left: auto; margin-right: auto; width: 50em">*Figure * - Comparison of results. In the left side the input values and results for _SatlinkTool_ and in the right the input and results of an example of calculating, found in the book.
</div>
h4. Payload
h3. Downlink
tip. ejemplos libro 5.4.3 y 5.6.3
h3. Overall link
h1 References
http://www.eutelsat.com/ (Azimuth and Elevation angles)