How to generate a truncated sine wave using Simulink...?

Hello everyone!

I was wondering how I can use Simulink to generate a truncated sine wave..? I'm really confused and my professor didn't show an example on how to do this. I've tried using the sine wave block, but I couldn't really come up with a solution.

 x(t) = {min{sin(t),0.5} if sin(t) >= 0 

        {max{sin(t),-0.5 if sin(t) < 0

The above equation is what I'm supposed to put in. I don't need the answer, just something to get me started.

Thanks in advance.

Answer 1

[Sebastian Castro]

Use a Sine Wave block and then connect a Saturation block after it (Simulink > Discontinuities), with limits of -0.5 and 0.5. That should do the trick!

- Sebastian

[Ecem Kucuk]

thank you so much! i appreciate it

[Keshav Chaudhary]

How to do it in the Matlab code that is when we are not using the block?

[Sebastian Castro]

With the min and max functions.

>> data = min(data,0.5);
>> data = max(data,-0.5);

... or in one line:

>> data = max(min(data,0.5),-0.5);

- Sebastian