kaiser (Signal Processing Toolbox)

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 beta parameter that affects the sidelobe attenuation of the Fourier transform of the window. The default value for beta is 0.5.

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

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