LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

My VI not work properly (QAM mod - demod) Please help!

My VI not work properly. In it, there are reed-solomon coding, convolutional coding, interleaving and QAM.  I am not a professional programmer. I make this VI with helping of built-in modulation examples of LabVIEW. BER is always at about 0,5. How can I correct this problem? (VI is in the link)

 

0 Kudos
Message 1 of 3
(2,434 Views)

Hello Kaykay,

 

You mentioned that you built this VI using built-in modulatin examples, did you gather them from the Example Finder? Could you be more specific regarding the issue that you are having with the VI? Whatis the BER value that you are expecting?

Andy Chang
National Instruments
LabVIEW Control Design and Simulation
0 Kudos
Message 2 of 3
(2,405 Views)

Thanks for your reply, Andy!

I looked examples for using of VI's. And I put some of them in same form. BER is bit error rate and it must at about zero. When AWGN is active, BER must increase. Then if convolutional encoder or Reed-Solomon encoder become active, BER must decrease.

I think, every thing is fine. I didn't find the problem.

0 Kudos
Message 3 of 3
(2,363 Views)