Frequency Modulation Using MATLAB

[Suraj Majumdar]

I hope this helps -

clc;
clear all;
fm=50;
fc=200;
mi=10;
t=0:0.0001:0.1;
m=sin(2*pi*fm*t);
subplot(3,1,1);
plot(t,m);
xlabel('Time');
ylabel('Amplitude');
title('Message Signal');
grid on;
c=sin(2*pi*fc*t);
subplot(3,1,2);
plot(t,c);
xlabel('Time');
ylabel('Amplitude');
title('Carrier Signal');
grid on;
y=sin(2*pi*fc*t+(mi*sin(2*pi*fm*t)));
subplot(3,1,3);
plot(t,y);
xlabel('Time');
ylabel('Amplitude');
title('FM Signal');
grid on;

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But i am getting this error msg frequently. Pls help me out with this.

Undefined function or method 'frequency' for input arguments of type 'char'.

 

[AdvaRes]

Hi,
The code is correct and works fine. I even tested it with Matlab.