Scilab Function
Last update : 2/11/2005

timefreq - calculation of short time spectrograms of a time series

Calling Sequence

[spk,timeaxis,faxis] = timefreq(x,fs)

Parameters

Description

Add here a paragraph of the function description. Other paragraph can be added

Add here a paragraph of the function description

Examples

t=(0:1:9000) ./1200; 
fs=200 + 50 .*sin(2 .*%pi .*t /2);
phi=cumsum(2 .*%pi .*fs ./1200);
x=sin(phi);
[spk,tax,fax]=timefreq(x,1200);
plot3d(fax,tax,spk);
// End of example timefreq

See Also

welch ,   burg ,  

Authors

Dr. Andreas Geissler geisslea@web.de