How to convert Infinite sine frequency to Hanning window?

Hello,

I am a complete Matlab novice and am trying to get the vibration results/values of a Hanning window to an infinite sine wave (s = Amplitude*sin(2*pi*frequency*time) can produce a finite wave. There are many examples of this online (in pictorial format) but I want to understand how it is done.

Any help would be grately appreciated!

Answer 1

[Abderrahim. B]

I recommend you to use windowDesigner App and wvtool tool, will help you to understand windowing.

Perhaps this below is also helpful:

Fs = 1000 ;
frequency = 20 ;
time = 0:1/Fs:2 ;
Amplitude = 2 ;
vib_sig = Amplitude*sin(2*pi*frequency*time) ;

figure
plot(time, vib_sig)

w_h = window(@hamming, length(vib_sig)) ;

figure
vig_sig_h = vib_sig.* transpose(w_h) ;
plot(time, vig_sig_h, "Color", "k")