Equivalent input noise vs frequency

miniDSP and AV Nirvana
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kai__

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Hi guys, I have a PCIe-6363, I want to draw a plot of equivalent input noise vs frequency, but I don't know how to do.
Now I collect the signal and display it in labview(pic1). If I want to draw a chart like pic2, what should I do?
pic1.png
pic2.png
 
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