generate pam

[MicrowaveDave]

Hey,

You can do this in a couple of steps. 

[MicrowaveDave]

Hey,

You can do this in a couple of steps.

[Minh T.]

Hey,

You can do this in a couple of steps. The output of the "Simulate Signal" Express VI is a dynamic data type. From there, you can use the "convert from dynamic data type" VI to convert this into a 1D array of double precision numbers. From there, simply multiply the whole array by a scaling factor (ie. 127) to get an array of data with value sfrom -127 to 127. Finally, you can use the "To Byte Integer" VI to coerce each value in the array to an I8. I have attached a VI that does this. Let me know if you have any more questions and I hope this helps!

Regards,

David Hall | Applications Engineering | National Instruments

[a92626113]

Thank you very much, but there is something missing, I need 1`s and 0`s in the output.

The PAM.vi, accepts an input of 1 `s and 0 `s.

Well, i have another problem, I bought a DAQ (PCI 6221), it only has 2 analog outputs, but i need 7. I am designing a  circuit; i am using a demux. But if you have any suggestions (specially with thw software), that would be appreciated.

Greetings.

[a92626113]

Hi, Do you use the modulation toolkit?
I am having problems trying to modulate a wave.
In PAM Modulation, the information signal is analog ( i am using a sine wave) and the carrier has to be digital ( first i thought i had to create a vi for this, but now i think is the type of filter).
I don ´t understand the MT modulate pam.

Greetings

[MicrowaveDave]

Please check out this post:

http://forums.ni.com/ni/board/message?board.id=170&message.id=169974

David Hall | Applications Engineering | National Instruments