Analog_Communication_Manual

May 1st, 2015
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1. Objective: To generate AM wave.2. Theory: Explain about MATLAB is a software package for high performance numerical computation and visualization. It provides an interactive environment with hundred of built in function for technical computation, graphics, and animation. Best of all, it also provide easy extensibility with its own high level programming language. The name MATLAB stands for MATrix LABoratory.

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Analog Communication ManualEverest Engineering and Management CollegeSitapaila, KathmanduLaboratory ManualAnalog Communication LabBELX-6th semEverest Engineering and Management CollegeExperiment No.1: To generate AM wave without using matlab inbuilt function.1. Objective: To generate AM wave.2. Theory: Explain about MATLABMATLAB is a software package for high performance numerical computation and visualization. It provides an interactive environment with hundred of built in function for technical computation, graphics, and animation. Best of all, it also provide easy extensibility with its own high level programming language. The name MATLAB stands for MATrix LABoratory.3. Program:clear allT=1/100;fm=0.25;fc=10;mt=sin(2*pi*fm*[0:T:10]);subplot(3,1,1);plot(mt)ct=sin(2*pi*fc*[0:T:10]);subplot(3,1,2);plot(ct)yt=mt.*ct;subplot(3,1,3);plot(yt)4. Program Output[pic]5. Questionsa) What do you mean by .* in above program.b) Explain following MATLAB command plot and sub plot.c) List out the advantage of AM systems.d) Why modulation is required in communicatioin system.6. Discussion and ConclusionExperiment No.2: To generate AM wave and plot its frequency spectrum using matlab.1. Objective: To generate AM wave and draw frequency domain representation.2. Theory:3. Program%settingfm=20;fc=500;vm=1;vc=1;%x-axis: Time(second)t=0:0.00001:0.099999;f=0:1:9999;%y-axis Voltage(Volt)wc=2*pi*fc;

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