Broadband signals

[olaola2017]

A pleasant afternoon to all esteemed LabVIEW users. For those familiar with generating multisines, I am presently experiencing issues with creating a dc offset together with my multisine signals like the multitone.vi or chirp vi.

Previously, I was thinking I could just sum up two different signal (that is the dc component and ac component) and connect to the DAQ Assist (Gen). However, it keeps bringing error, that it is only a single signal that can work.

Attached is a chirp.vi signal for instance, that I intend to apply a dc point or offset to.

I appreciate all your prompt responses.

Regards,

Ola

[LV_Pro · Accepted solution]

Show us your diagram, with the DAQ assistant on it, configured as an analog output. I did it here and don't see a problem, having wired a dbl numeric control to an "ADD" primitive, basically adding the dbl (DC offset) to the chirp signal. Of course, if you don't wrap it in a loop you will get only one chirp.

[olaola2017]

Thanks,

That actually did the trick. The initial problem was that I kept trying to sum up another dc signal.