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//Example 12.16
//Note: MAXIMA SCILAB TOOLBOX REQUIRED FOR THIS PROGRAM
//Program to determine the ratio of SNRs of FM-IM and PM-IM systems
clear;
clc ;
close ;
//Symbolic representation
syms fd Pa R Po Ac Ba No
//FOR FM-IM
Df=fd/Ba; //Frequency Deviation
SNR_FM=3*Df^2*Pa*(R*Po)^2*Ac^2/2/(2*Ba*No);
//FOR PM-IM
Dp=fd/Ba; //Frequency Deviation
SNR_PM=Df^2*Pa*(R*Po)^2*Ac^2/2/(2*Ba*No);
//Determining Ratio
Ratio=SNR_FM/SNR_PM;
//Displaying the Result in Command Window
disp(Ratio," SNR_FM/SNR_PM = ");
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