LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

Waveform accidentally scaled before PSD, how to undo?

Before passing the waveform to Power Spectral Density VI, it was divided by 1000. I am getting my PSD output in dB.

 

How could I undo the effect of the division? Is there any factor to scale by?

 

The PSD used is the standard Labview VI, with all default values (except with dB on).

0 Kudos
Message 1 of 4
(2,320 Views)
I don't understand, do you not have the original data anymore? What happened to it?

Mike...

Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion

"... after all, He's not a tame lion..."

For help with grief and grieving.
0 Kudos
Message 2 of 4
(2,295 Views)

No I don't....I only have the scaled version now...

0 Kudos
Message 3 of 4
(2,290 Views)

Someone else many come along that's a lot more familiar with the underlying math, but I'm pretty sure you're hosed.

 

The lesson that you need to learn here is: always, Always, ALWAYS save the raw data -- then after the analysis save the results in a different file. And backup everything.

 

Mike...


Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion

"... after all, He's not a tame lion..."

For help with grief and grieving.
0 Kudos
Message 4 of 4
(2,264 Views)