Program to generate FM Signal and Analyze the effect of increasing modulation index for each modulation technique. // FM --> Frequency Modulation Ac= 10 ; Am= 10 ; wm= 2 * %pi * 25 ; wc= 2 * %pi * 400 ; t=[ 1 : 0.0002 : 1.1 ]; m=Am* cos (wm*t); c=Ac* cos (wc*t); subplot( 5 , 1 , 1 ); mf= 10 ; Sam1=Ac* cos (wc.*t+(mf)* sin (wm.*t)); plot(t,Sam1, 'red' ); legend( 'm=10' ); mf= 12 ; subplot( 5 , 1 , 2 ); Sam=Ac* cos (wc.*t+mf* sin (wm.*t)); plot(t,Sam , 'blue' ); legend( 'm=12' ); xlabel( 'Time' ); ylabel( 'Amplitude' ); subplot( 5 , 1 , 3 ); mf= 15 ; Sam=Ac* cos (wc.*t+(mf)* sin (wm.*t)); plot(t,Sam, 'black' ); legend( 'm=15' ); subplot( 5 , 1 , 4 ); mf= 20 ; Sam=Ac* cos (wc.*t+(mf+ 20 )* sin (wm.*t)); plot(t,Sam, 'green' ); legend( 'm=20' ); subplot( 5 , 1 , 5 ); mf= 15 ; Sam1=Ac* cos (wc.*t+(mf)* sin (wm.*t)); plot(t,m, 'black' ,t,c, 'green' ,t,Sam1, 'blue' ); legend(...
Comments
Post a Comment