Signal Processing Toolbox

kaiser

Compute a Kaiser window

Syntax

• w = kaiser(n,beta)
  

Description

w = kaiser(n,beta) returns an n-point Kaiser (I₀ - sinh) window in the column vector w. beta is the Kaiser window parameter that affects the sidelobe attenuation of the Fourier transform of the window.

To obtain a Kaiser window that designs an FIR filter with sidelobe height - dB, use the following .

Increasing beta widens the main lobe and decreases the amplitude of the sidelobes (increases the attenuation).

Examples

Create a 200-point Kaiser window with a beta of 2.5 and display the result using WVTool:

• w = kaiser(200,2.5);
  wvtool(w)
  
   
  

See Also

chebwin, gausswin, kaiserord, tukeywin, window, wintool, wvtool

References

[1] Kaiser, J.F., "Nonrecursive Digital Filter Design Using the - sinh Window Function," Proc. 1974 IEEE Symp. Circuits and Systems, (April 1974), pp. 20-23.

[2] Selected Papers in Digital Signal Processing II, IEEE Press, New York, 1975.

[3] Oppenheim, A.V., and R.W. Schafer, Discrete-Time Signal Processing, Prentice-Hall, 1989, p. 453.

is2rc

kaiserord