AM modulation in matlab simulink in time domain and frequency domain

fs=22050;%sampling frequency

Ts=1/fs;%sampling period 

N=1000;%number of samples

t=[0:Ts:N*Ts-Ts];%time axis

f=[-fs/2:fs/N:fs/2-fs/N];%frequency axis

fc=2000;%carrier frequency

fm=300;%modulation frequency

p=sin(2*pi*fp*t);%carrier signal

x=sin(2*pi*fm*t);%modulation signal

m=0.75;%modulation index

y=((1+m*x).*p);%modulated signal

Y=fft(y);%modulated signal DFT

figure()

plot(t,y) ;title('AM Signal');xlabel('Time axis');ylabel('Amplitude');

figure()

stem(f,fftshift(abs(Y))) ;title('AM Signal Spectrum');xlabel('Frequency axis');ylabel('Amplitude');

 to run this program according to your requrement

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