Editing Kaiser window (section)

{{Short description|Used in finite impulse response filter design and spectral analysis}}
[[Image:KaiserWindow.svg|right|thumb|401px|The Kaiser window for several values of its parameter]]

The '''Kaiser window''', also known as the '''Kaiser–Bessel window''', was developed by [[James Kaiser]] at [[Bell Laboratories]]. It is a one-parameter family of [[window function]]s used in [[finite impulse response]] [[filter design]] and [[spectral estimation|spectral analysis]].  The Kaiser window approximates the [[DPSS window]] which [[Spectral concentration problem|maximizes the energy concentration in the main lobe]]<ref>{{Cite web |url=https://ccrma.stanford.edu/~jos/sasp/Slepian_DPSS_Window.html |title=Slepian or DPSS Window |website=ccrma.stanford.edu |access-date=2016-04-13}}</ref> but which is difficult to compute.<ref>{{cite book |author1=Oppenheim, A. V. |author2=Schafer, R. W. |title=Discrete-time signal processing |location=Upper Saddle River, N.J. |publisher=Prentice Hall |year=2009 |page=541 |isbn=9780131988422}}</ref>