Generating Signal in MATLAB

[jagthedag]

geneate siganl given below :

a)s=3*sin(2*Pi*(0.13)*n)+2*cos(2*Pi*(0.3)*n)

b)s=7*sin(2*Pi*(0.1)*n)

for n=0,1,2,......,128.

and 1)plot magnitude and phase response
2)plot the frequency content of signal..

CAN ANYONE HELP ME WITH THIS PROBLEM?

 

[hitman1988]

hi
first you need to define n , as a matrix
n= 1 : 1 :128 ;
and then write down the equations
and then if you want to plot the two signals in the same graph you use:

graph
subplot(3,1,1); plot(x1)
title('...............');
subplot(3,1,2); plot(x2)
title('.......................');

that for example how to use multiplpot figure
i hoe that waht you want.

 

[Aya2002]

hi
first you need to define n , as a matrix
n= 1 : 1 :128 ;
and then write down the equations
and then if you want to plot the two signals in the same graph you use:

graph
subplot(3,1,1); plot(x1)
title('...............');
subplot(3,1,2); plot(x2)
title('.......................');

that for example how to use multiplpot figure
i hoe that waht you want.

If you used subplot (3,1,1) this will divide the figure window into three parts, so , you have to use subplot (2,1,1) or equivalently (211) as show in the following code:


clc;
clear all;
close all;
n= 1 : 1 :128 ;
x1=3*sin(2*pi*(0.13)*n)+2*cos(2*pi*(0.3)*n);
x2=7*sin(2*pi*(0.1)*n);
subplot(2,1,1); plot(x1)
subplot(2,1,2); plot(x2,'r')





regards

 

[Zeesh]

simply use

gensig() command in matlab
see matlab help