Hann function

Hann function

The Hann function, named after the Austrian meteorologist Julius von Hann, is a discrete probability mass function given by

:w(n)= 0.5; left(1 - cos left ( frac{2 pi n}{N-1} ight) ight)

Name

Hann function is the original name, in honour of von Hann; however, the common mistake 'Hanning' function has become equally acceptableFact|date=March 2008. The confusion arose from the similar Hamming function, named after Richard Hamming.

ee also

* Apodization
* Window function

External links

* [http://mathworld.wolfram.com/HanningFunction.html Hanning function] at MathWorld


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