Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: pwelch power correction factor
Replies: 7   Last Post: Jul 12, 2014 2:16 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Henik Vargas

Posts: 1
Registered: 11/15/10
pwelch power correction factor
Posted: Nov 15, 2010 9:03 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Hi all,

I am doing some spectrum analysis and I am thinking of using the pwelch function with a hann window. Now, I understand that application of a window reduces the power of the signal, so usually a correction or scaling factor has to be applied.

My question is, does anyone know if the pwelch function applies this correction factor? I implemented my own welch function to compare and the result is identical, except that MATLAB's pwelch function seems to ignore the correction factor (or I am doing something wrong)

Thank you,



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.