How Do I Plot the Convolution of Two Discrete Functions in Matlab?

[ELE 2009]

Homework Statement

I want to plot the convolution of 2 discrete funtions, for example: rect₁ [n] and sin (2*pi*n/9), how can i do that?

thanks!

Homework Equations

The Attempt at a Solution

 

[MATLABdude]

1) Make two vectors containing data points for your function over your range of interest.

2) Use the MATLAB conv function:
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/conv.html

 

[Mene]

To plot the convolution of two discrete functions in Matlab, you can use the conv() function. This function takes two discrete functions as its inputs and returns the convolution of the two functions. In your case, you can use the rect1[n] and sin(2*pi*n/9) as the inputs for the conv() function.

For example, if you have the following code:

n = 0: 0.1: 10; % define the range of n
rect1 = rectpuls(n,5); % define the rect1 function
sinusoid = sin(2*pi*n/9); % define the sinusoid function
convolution = conv(rect1, sinusoid); % calculate the convolution using conv() function

Then, to plot the convolution, you can use the plot() function as follows:

plot(n, convolution);

This will give you a plot of the convolution of the two functions. You can also add labels and titles to the plot using the xlabel(), ylabel(), and title() functions.

I hope this helps! Let me know if you have any further questions.