Double-x subscript in Pxx, Signal Process Toolbox document

2 views (last 30 days)
Bob Li
Bob Li on 28 Dec 2011
Hi,
In Signal Processing Toolbox User’s Guide R2011b, 6-5, page 179, http://www.mathworks.com/help/pdf_doc/signal/signal_tb.pdf, I am curious why the document uses double-x in Pxx notation, as well as Rxx.
I think one x or without x might be more appropriate. For example, as the notation in the Wikipedia page http://en.wikipedia.org/wiki/Spectral_density#Power_spectral_density.
Could anyone explain the reason?
Bob

Sign in to answer this question.

Accepted Answer

bym
bym on 28 Dec 2011
I guess to differentiate it from cross power spectrum Pxy

More Answers (0)

Categories

Find more on Matched Filter and Ambiguity Function in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!