If I capture an analog signal using a real-time sampling oscilloscope (DSA90000A series), how do I process the raw data (received in Volts by the oscilloscope I'd assume) using some software package (e.g. Matlab) to get data in units of dBV/sqrt(Hz), where I use dBV here to mean "referenced to 1V rms" (e.g. 0dBV = 1Vrms)? That is, can someone lead me through the operations that need to be performed. Not necessarily looking for scripts (although Matlab script would be useful), but more for general understanding. How is this done?
The OP asked the same question, on the same day, on dsprelated.com, which is probably a more appropriate venue. He got a couple of answers, but never responded, so there's now way to know what happened.
This post is the only one he ever made on Agilent.com...