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Convolution Calculator in MATLAB

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Admin
Admin

Posts : 473
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Join date : 2014-12-10
Age : 24
Location : Pakistan

Convolution Calculator in MATLAB

Post by Admin on Tue Jun 07, 2016 12:23 am

CONVOLUTION CALCULATOR in MATLAB


Hi folks, i hope you are doing fine , Today I will share one of my MATLAB Projects. (convolution calculator in MATLAB).

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  • MATLAB has an inherent command for convolution utilizing which we can undoubtedly discover the convolution of two capacities.


 

  • Sentence structure of this builtin convolution summon is v=conv(x,h) where x and h are the info capacities while v is our yield.


 

  • In my code I have utilized this builtin capacity and additionally I have likewise plan a little calculation for computing the convolution utilizing its equation.


 

  • Subsequent to finding both the convolutions, I have just thought about them by plotting them on diagram with the goal that we can likewise confirm that our outcome is right.


 

  • You can utilize this convolution number cruncher to discover convolution of any two capacities.


 

  • In this way, as a matter of first importance, duplicate this code and glue it in your m document and run it:


 
clc
close all
clear all


x=input('enter the sequence, x(n)=')
h=input('enter the sequence, h(n)=')

m=length(x);
n=length(h);
subplot(4,1,1)
stem(1:m,x,'fill','r')
grid on;
title('input sequence, x(n)=')
xlabel('time n------>')
ylabel('amplitude----->')

subplot(4,1,2)
stem(1:n,h,'fill','r')
grid on;
title('impulse sequence, h(n)=')
xlabel('time n------>')
ylabel('amplitude----->')
%------linear convolution using inbuilt command------------------------%

v=conv(x,h)
l=m+n-1;
subplot(4,1,3)
stem(1:l,v,'fill','r')
grid on;
title('output sequence using inbuilt command, v(n)=')
xlabel('time n------>')
ylabel('amplitude----->')
%--------linear convolution using 'for' loop------------------------------%

X=zeros(1,l);
H=zeros(1,l);
X(1:m)=x;
H(1:n)=h;
for i=1:l
Y(i)=0;
for j=1:i
Y(i)=Y(i)+X(j)*H(i-j+1);
end
end
Y
subplot(4,1,4)
stem(1:l,Y,'fill','r')
grid on;
title('output sequence using loop, Y(n)=')
xlabel('time n------>')
ylabel('amplitude----->')

 

  • The above code for convolution mini-computer is entirely clear as crystal however given me a chance to explain it a bit.


 

  • Above all else, I am requesting inputs from client and they are spared in variables named as x and h.


 

  • After that I am plotting them utilizing stem capacity.


 

  • In the following segment, I have utilized the default MATLAB summon for Convolution and figured the convolution of x and h and spared it in v.


 

  • Next I connected my straightforward calculation and ascertained convolution of x and h and spared it in Y furthermore plotted it.


 

  • When you run the recreation and give your info capacities, you will get the underneath results:


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  • You can find in the above assume that I have given two inputs x and h and MATLAB Convolution Calculator computed the convolution and gave us v and Y.


 

  • v is computed as a matter of course MATLAB order while the Y is ascertained by our little convolution calculation.


 

  • Their chart representation is appeared in the underneath figure:


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  • As, we have recognized two circles so the charge window is demonstrating the X, Y directions of both these circles alongside their radii.


 

  • Presently test it furthermore change the base and most extreme reaches and you will see you are going to identify more circles.


[divider style="dotted" top="20" bottom="20"]

For any kind of help and queries, Don't hesitate to comment below.

    Current date/time is Fri Mar 31, 2017 2:27 am