Signal Toolkit - kaiser

Function File: kaiser (m)

Function File: kaiser (m, beta)

Return the filter coefficients of a Kaiser window of length m. The Fourier transform of the window has a stop-band attenuation that is derived from the parameter beta.

For the definition of the Kaiser window, see A. V. Oppenheim & R. W. Schafer, "Discrete-Time Signal Processing".

The continuous version of width m centered about x=0 is:

         besseli(0, beta * sqrt(1-(2*x/m).^2))
 k(x) =  -------------------------------------,  m/2 <= x <= m/2
                besseli(0, beta)
 

See also: kaiserord.