unwrap a generated signal

[toupsonx]

i want to ''unwrap'' a signal(such as sweep sine or random signal) that i generate in my cRIO and feed a fifo to send signal to fpga. Can someone help me how to unwrap a signal?

thanks!

[Bob_Schor]

Why don't you attach the VI that you use to generate the signal?  Can you also specify what format you want when the signal is "unwrapped"?  I don't think that there is an "unwrap" function in LabVIEW, so we'll need to know just what you want as an output.  Is it a 1D array of Dbls representing data taken at some uniform sampling interval, dt (which we don't need to know)?  Is it a Waveform, which combines the 1D array and the dt in a special Cluster?

Bob Schor

[altenbach]

Are you trying to unwrap the phase?

[toupsonx]

this is the subVI of the signal that i generate taking parameters on the UI and generate the signal on the RT side of the cRIO. I want to unwrap that signal to pass it to the FPGA to feed my DUT because i don't want to send the whole signal in one block.

thanks!

[GerdW]

Hi toupsonx,

I want to unwrap that signal to pass it to the FPGA to feed my DUT because i don't want to send the whole signal in one block.

In which way do you want to "unwrap"?

And how is this related to sending several blocks of data from RT to FPGA?

(It would be nice to have some default values in your "Generation parameters" cluster to immediatly see your problem. Setting some values gives a nice waveform in the graph.)