Edit History

Wiki »

Conclusion » History » Version 6

QUERE, Antoine, 03/27/2017 04:24 PM

1 3 SCHNEIDER, Joris 
+*Previous :*+[[APT images reception]]
2 2 SCHNEIDER, Joris 





    3
    1
    SCHNEIDER, Joris
    
h1. Conclusion





    4
    3
    SCHNEIDER, Joris
    





    5
    4
    SCHNEIDER, Joris
    
As part of the Advanced Master Space Communication Systems, we have the project to build an antenna to receive weather image from NOAA satelitte. 





    6
    4
    SCHNEIDER, Joris
    
Our project was divided in several parts.





    7
    4
    SCHNEIDER, Joris
    
At first we have studied, NOAA agency and its satellite. We focused precisely on how the APT signal is created and transmitted.





    8
    4
    SCHNEIDER, Joris
    
Secondly, we compare different type of antenna. For a question of cost, we have decided to use an omnidirectional antenna. Our comparative study allowed us to conclude that the Double Cross Antenna was the best solution according to our criteria.





    9
    4
    SCHNEIDER, Joris
    
Once we have chosen the Double Cross Antenna, we have bought the different components in order to build it. We passed 10 hours to build the antenna and then we placed it on the roof of the lab building.





    10
    4
    SCHNEIDER, Joris
    
Finally, we studied two different solution to receive and decode our signal, one with WXtoImg and the other with Labview.





    11
    4
    SCHNEIDER, Joris
    





    12
    4
    SCHNEIDER, Joris
    
We were able to lead this project from the study of the APT transmission chain to receiving process. The building of the antenna was a main step of our project and was the more interesting part. It allowed us to understand more clearly how the antenna works, particularly the polarization.





    13
    4
    SCHNEIDER, Joris
    





    14
    6
    QUERE, Antoine
    
The improvements that we could have done are about the correction of the Doppler effect. We could used a Digital Phase Locked Loop to remove this effect. One other improvement it is about the using of a directional antenna with a tracking system to have a better signal at the reception and thus a better quality for the images.





    15
    5
    SCHNEIDER, Joris
    





    16
    5
    SCHNEIDER, Joris
    
h2. References 





    17
    5
    SCHNEIDER, Joris
    





    18
    5
    SCHNEIDER, Joris
    
* http://www.noaa.gov/





    19
    5
    SCHNEIDER, Joris
    
* https://en.wikipedia.org/wiki/National_Oceanic_and_Atmospheric_Administration





    20
    5
    SCHNEIDER, Joris
    
* http://noaasis.noaa.gov/NOAASIS/pubs/Users_Guide-Building_Receive_Stations_March_2009.pdf





    21
    6
    QUERE, Antoine
    
* http://inbuildingprojects.com





    22
    6
    QUERE, Antoine
    
* htpp://onwireless.com.au





    23
    5
    SCHNEIDER, Joris
    
* http://www.geo-web.org.uk/ “A tool for evaluatiing APT antenna performance”





    24
    5
    SCHNEIDER, Joris
    
* https://www.jcoppens.com/ant/qfh/sim.en.php





    25
    5
    SCHNEIDER, Joris
    
* https://www.tutorialspoint.com/antenna_theory/turnstile_antenna_theory.htm





    26
    5
    SCHNEIDER, Joris
    
* http://diy.bartko.info/reception-of-weather-images/





    27
    5
    SCHNEIDER, Joris
    





    28
    4
    SCHNEIDER, Joris
    
  





    29
    4
    SCHNEIDER, Joris
    





    30
    3
    SCHNEIDER, Joris
    





    31
    3
    SCHNEIDER, Joris
    
+*Previous :*+[[APT images reception]]