10-09-2009 02:50 AM
Hi,
I 'm trying to use SINAD analyser. I 'm looking for rms value of noise (integrate noise over fs/2)+rms values of all harmonics. But I don't want to include DC. In the SINAD VI, if I use exported signals and use residue signals in export signal option, would the value coming out be excluding the DC component or its DC +harmonics +noise?
The output of the residue should be RSS voltage addition of integrated noise +rms addition of harmonics. Can I get that? I can add individual harmonics but I can' t get the integrated noise over the bandwidth (fs/2).
I hope I'm able to drive my question.
Any inputs appreciated.
Thanks inadvance
10-09-2009 03:49 AM
11-07-2014 02:36 PM
The "SINAD (dB)" and "THD plus noise" outputs are calculated with the DC value excluded. The exported signal spectra, however, do not exclude the DC component. I believe that this is causing some confusion when referring to the "outputs" of the vi.
Rich