LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

USB-demodulation

Hello.
I'm developing complex program, which works with IQ-data.
I'm really new in demodulation.
So, the app reads iq-file, draws waterfall and next step, a user selects fragment on waterfall an dthe app wust play this signal.
Here the WF. You can see 2 gignals. I need to play the right one (USB)

wf.PNG
In my company we have od version of demodulation, and it almost works, but I hear second signal (like peep).
Now I hry use modulation toolkit. And AM-demodulation VI has single-side mode, but I can't tune it correctly.
Here my test vi.

demodulation.png
I've also attached LV-15 archive with all subVIs.
Can anybody help my with USB-demodulation?

 

Central F in file = 10.052400MHz

Download All
0 Kudos
Message 1 of 3
(2,860 Views)

Hi Artem.SPb,

 

Have you tried using the "MT AM-SSB Mod-Demod.vi" example VI that ships with the modulation toolkit? If so, does this example program work as expected? I think this would be a good starting point to ensure that we are correctly demodulating the AM-SSB signal. 

 

Best,

Adena L.
Technical Support Engineer
National Instruments
0 Kudos
Message 2 of 3
(2,796 Views)

Hello, Adena!
I've seen this example, but it not helps me, because there are single tone. Maybe I use wrong demod settings.

0 Kudos
Message 3 of 3
(2,777 Views)