School Work

Lab Record

of 32
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Communication Systems Lab
  AMPLITUDE MODULATION Ex No:1Date: AIM: To write a MATLAB code to generate an amplitude modulated waveform. ALGORITHM: Step 1:Start.Step 2: Generate the amplitude modulated wave.Step 3:Plot the output.Step 4:Stop. PROGRAM: clc;clf;close all;clear all;t=0.1:0.001:1;m=5*sin(2*pi*10*t);subplot(3,1,1); plot(m);grid on;title('SIGNAL');xlabel('frequency');ylabel('amplitude');c=5*cos(2*pi*100*t);subplot(3,1,2); plot(c);grid on;title('CARRIER');xlabel('frequency');ylabel('amplitude');x=5/5;disp(x);a=(1+x.*(sin(2*pi*10*t))).*cos(2*pi*100*t);subplot(3,1,3);   plot(a);grid on;title('AM SIGNAL');xlabel('frequency');ylabel('amplitude'); OUTPUT:RESULT: Thus an amplitude modulated waveform was generated using MATLAB. FREQUENCY MODULATION Ex No:2Date: AIM: To write a MATLAB code to generate a frequency modulated waveform.  ALGORITHM: Step 1:Start.Step 2:Get the parameter required to design a frequency modulation as inputs.Step 3:Generate the frequency modulated wave.Step 4:Plot the waveform and label it.Step 5:Stop. PROGRAM: clc;clf;close all;clear all;t=0.1:0.001:.5;fm=input('Enter the fm value= ');m=5*sin(2*pi*fm*t);subplot(3,1,1); plot(m);grid on;title('SIGNAL');xlabel('frequency');ylabel('amplitude');c=5*cos(2*pi*100*t);subplot(3,1,2); plot(c);grid on;title('CARRIER');xlabel('frequency');ylabel('amplitude');k=input('Enter the frequency sensitivity= ');x=k/fm;f=5*cos((2*pi*100*t)+x.*sin(2*pi*fm*t));subplot(3,1,3); plot(f);grid on;title('FM SIGNAL');  xlabel('frequency');ylabel('amplitude'); INPUT: Enter the fm value= 10Enter the frequency sensitivity= 100 OUTPUT:RESULT: Thus a frequency modulated waveform was generated using MATLAB. AMPLITUDE SHIFT KEYING Ex No:3Date:
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks