0
$\begingroup$

I was trying to learn some more window functions and was referencing the Wikipedia article on the subject. I've noticed on a lot of the plots, there appears to be a capitalized and italicized letter B. What is this parameter? I can't find any reference to it on the page. link to wikipedia article And here's a photo that features two plots, each having an associated 'B' parameter with them. imgur What is this?

enter image description here

$\endgroup$
3
$\begingroup$

See paragraph from wiki. There is an explanation of B metric:

Each figure label includes the corresponding noise equivalent bandwidth metric (B),[note 1] in units of DFT bins.

Note 1:

Mathematically, the noise equivalent bandwidth of transfer function H is the bandwidth of an ideal rectangular filter with the same peak gain as H that would pass the same power with white noise input. In the units of frequency f (e.g. hertz), it is given by: $$ B_{noise}={\frac {1}{|H(f)|_{max}^{2}}}\int _{0}^{\infty }|H(f)|^{2}df. $$

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.