Thread: How to convert captured scope data to dBV/sqrt(Hz)?


Permlink Replies: 3 - Pages: 1 - Last Post: Jun 8, 2012 11:59 AM Last Post By: algoss Threads: [ Previous | Next ]
ptdsp

Posts: 1
Registered: 02/13/10
How to convert captured scope data to dBV/sqrt(Hz)?
Posted: Feb 13, 2010 8:16 PM
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Hi Everyone,

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?

Thanks in advance for any replies
Phil Taylor

Posts: 7
Registered: 12/03/11
Re: How to convert captured scope data to dBV/sqrt(Hz)?
Posted: Dec 5, 2011 1:29 PM   in response to: ptdsp in response to: ptdsp
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Did you ever find the answer to this question?

I am looking for the same information.

PT
DRuiz

Posts: 1
Registered: 06/08/12
Re: How to convert captured scope data to dBV/sqrt(Hz)?
Posted: Jun 8, 2012 10:15 AM   in response to: ptdsp in response to: ptdsp
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Hi

Looking for answer to same question but I guess I wont find it here after all this time. :-(

Donna
algoss


Posts: 381
Registered: 11/03/06
Re: How to convert captured scope data to dBV/sqrt(Hz)?
Posted: Jun 8, 2012 11:59 AM   in response to: DRuiz in response to: DRuiz
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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...

Al

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