am.m

AM、SSB调制与解调电路的MATLAB实现及调制性能分析

clear; 
clf; 
t=0:pi/10:40*pi; 
Carrier=sin(t); 
Mod_Sig=sin(t/20); 
Dsb_am=Carrier.*(1+Mod_Sig); 
plot(t,Carrier,t,Mod_Sig,t,Dsb_am); 
title('Plot of carrier modulated by sinewave (dsb-am)'); 
xlabel('time'); 
ylabel('voltage'); 
grid on; 
legend('carrier','baseband','modulated signal')