raqamlialoqa

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Updated Dec 2025

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powerpoint presentation raqamli aloqa faza modulyatsiya tashkent - 2023 modulating signal carrier signal pm modulated wave sidebands deviation min frequency max frequency peak deviation carrier frequency pm block diagram differentiator frequency modulator modulating signal carrier signal pm modulated signal mathematical expressions: time domain waves modulating signal - carrier signal - c and are the amplitude of the modulating and the carrier signal and are the frequency of the modulating and the carrier signal mathematical expressions: frequency modulated wave +noise*tang() here: is modulation index -peak deviation frequency of modulating signal h=16 h=11 h=5 matlab code clear all am=4; ac=20; fc=70; fm=2; h=20; j=1; fmin=1000; fmax=-1000; k=1; for i=2:j-1 freq=1/(ext_p_t(i)-ext_p_t(i-1)); if freq fmax fmax=freq; end end dfc=(fmax+fmin)/2 dh=(fmax-dfc)/fm for i=1:60000 t(i)=i/40000; m(i)= am*sin(2*pi*fm*t(i)); c(i)=ac*cos(2*pi*fc*t(i)); s(i)=ac*cos(2*pi*fc*t(i)+ h*cos(2*pi*fm*t(i))); if i>2 && s(i-2) s(i) ext_p_t(j)=t(i); j=j+1; end end 1 2 3 matlab code fmin=1000; fmax=-1000; k=1; for i=2:j-1 freq=1/(ext_p_t(i)-ext_p_t(i-1)); if freq fmax fmax=freq; end end …

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, fr=75; 8 =3.5, t=25, h=13, fr=45; 9 =4.5, t=27, h=15, fr=35; 10 cos(x) =1.5, t=35, h=16, fr=55; image1.png image2.png image4.png image8.png image9.png image5.png image6.png image3.png image7.png image10.png image11.png image13.png 0.5 -20 20 0.5;- 28 0.5 60 92 1.5 40 60 70 m(t) = a,,sin(27f,,t) c(t) = a,cos(27f,t) a, and a;are the amplitude of the modulating and the carrier signal fm and f, are the frequency of the modulating and the carrier signal s(t) = a, cos(27f,t + sin(27f,,t)') = = a, cos(27f,t + hcos(27f,,t))+noise*tang() ~ fin here: h is modulation index af -peak deviation fm frequency of modulating signal 0.5 -20 20 0.5;- 38 0.5 70 1.5 102 40 70 100 110 0.5 -20 20 0.5 -20 0.5;- 48 0.5 70 92 1.5 55 65 70 75 85 95, 0.5 -20 20 -20 60 0.5 70 80 1.5 62 70 72 74 76 78 0.5 -20 20 -20 30 …

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powerpoint presentation raqamli aloqa faza modulyatsiya tashkent - 2023 modulating signal carrier signal pm modulated wave sidebands deviation min frequency max frequency peak deviation carrier frequency pm block diagram differentiator frequency modulator modulating signal carrier signal pm modulated signal mathematical expressions: time domain waves modulating signal - carrier signal - c and are the amplitude of the modulating and the carrier signal and are the frequency of the modulating and the carrier signal mathematical expressions: frequency modulated wave +noise*tang() here: is modulation index -peak deviation frequency of modulating signal h=16 h=11 h=5 matlab code clear all am=4; ac=20; fc=70; fm=2; h=20; j=1; fmin=1000; fmax=-1000; k=1; for i=2:j-1 freq=1/(ext_p_t(i)-ext_p_t(i-1)...

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