Undefined function 'times' for input arguments of type 'struct'.

i keep getting the above error when i try to module a signal using Amplitude modulation.

im very new to this software so maybe its something really minor, but i cant seem to find the solution anywhere.

x=m.*c;

im getting the error in the above line where m is the message wave and c is the carrier wave.

by the way these where passed from another function to this modulating function.

hope someone can help Thanks in advance

Answer 1

[Wayne King]

I think you need to show us how you are forming your variables m and c - is either one or both a structure array?

They clearly aren't vectors.

For example, the following works to form an amplitude-modulated signal:

 Fs = 20000;
 t = 0:1/Fs:1;
 m = (1+cos(2*pi*10*t));
 c = sin(2*pi*1000*t);
 x = m.*c;