
Re: pwelch power correction factor
Posted:
Nov 16, 2010 12:55 AM


On Nov 16, 3:03 am, "Henik Vargas" <vhe...@microsoft.com> wrote: > 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)
What makes you think you need a correction factor? Instead of replicating what matlab does, read up on the method you play with.
Rune

