Example Program Drafts

Showing results for 
Search instead for 
Did you mean: 

APT Image from weather satellite decoder

Author(s): CAILLOT Antoine

NI Product(s) Used: LabVIEW 2018
Industry: Telecommunication

APT Signals

APT signal is an analogically method to transmit images. It is used by some satellites which are pretty often used by radio amateur such as NOAA 15, 18 and 19. The main challenge to build this program was to find documentation to understand how to decode APT signals. (All the documentation I found on google is in the zip file).


Application Description

The program is extremely simple, you just have to use an audio wav file  (recorded at 11025 sample/s if possible) and to press the button "Decode". Processing time might last several seconds or even several minute (depending on you computer and the file length). I included a wav file in the folder as example (still from google). You can save the image as bmp by pressing "Save image", you will find it in the folder of the app, or in the same folder with the source code.



Screenshot 2018-12-06 at 23.07.28.png


 As long as it is a first version, it will be buggy and it will requires a lot of improvement. The code is free (use with your LabVIEW License).

Don't hesitate to give me your feedback, I will be very glad to hear it!

Proven Zealot
Proven Zealot

Unfortunately I don't have LV 2018 to play around with this, but it's helper apps like this that are the most awesome.  Smiley Happy

(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.
Humble author of the CLAD Nugget.