Updated docu

functions/auxiliary/kaiserBesselWindow.m

@@ -3,11 +3,10 @@ function window = kaiserBesselWindow(N, beta)
 %
 %    ``window = kaiserBesselWindow(N, beta)``
 %
-% The Kaiser-Bessel window is computed according to [3]_. The definition of the
-% center (the zero) is in accordance with the definition of the centered dft. Other
-% options are probably possible, the important aspect is that the function weighted
-% by the Kaiser-Bessel window becomes fully periodizable. Note: generally a choice of
-% beta = 8 is good, beta = 0 corresponds to a rectangle-function.
+% By multiplying an array with the window prior to computing the FFT of it, periodicity
+% effects of the discrete Fourier transform are suppressed. Accordingly, the Kaiser
+% Bessel window improves the approximation of the continuous Fourier transform by
+% the discrete one.
 %
 % Parameters
 % ----------
@@ -20,10 +19,6 @@ function window = kaiserBesselWindow(N, beta)
 % -------
 % window : numerical array
 %     computed Kaiser-Bessel window
-%
-% References
-% ----------
-% .. [3] T. Butz: 'Fourier-Transformation fuer Fussgaenger', 3rd ed., Teubner, 2003, p. 97
 % 
 % Example
 % -------