NI-USRP 2901

[zhenghao]

Hi

I am using NI-USRP 2901, I noticed that when I am running the Rx. The data saved is like .2 .3, is there any way I can save more accurate data?

Best

[Messenger2]

Hello zhenghao,

Can you provide more details, please? By ".2, .3" you mean that the data isn't being represented in enough digits?

If you could attach the code you're running, we could look over it and see how the Rx interacts with the data.

Have you tried simulating the algorithm on your PC before deploying it to the USRP? You might be able to catch performance issues that way as well.

Looking forward to hearing from you again,

Messenger2

[zhenghao]

Hello 

I am running example code from LabVIEW, the file name is 'niUSRP EX PSK Rx.vi'

It's under 'usrp\niUSRP\ModulationToolkitExamples'. 

By right click the figure I can do 'export data to excel' and save the data.

The data I want is like 0.56846 but in the excel is like 0.5.

I think the USRP do have that exact data with more digital, but don't know how to do that

If I could some help on how to get that will be really helpful.

Best

[Messenger2 · Accepted solution]

The data from the block diagram may be accurate, but set to low digits of precision in the front panel.

To change that, right-click Constellation Graph > Properties > Display Format and change number of Digits of Precision.

Please see attachment.

If that doesn't work, then the data is rounded in the block diagram, although usually that's not the case. Please let me know how it goes.

[zhenghao]

Great！

Thank you so much!