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+//Page Number: 8.14
+//Example 8.14
+clc;
+//Given
+GG1=20;//dB
+G1=(10^(GG1/10));
+
+FF1=6;//dB
+F1=(10^(FF1/10));
+
+GG2=60;//dB
+G2=(10^(GG2/10));
+
+FF2=16;//dB
+F2=(10^(FF2/10));
+
+LF=3; //dB
+FC=(10^(LF/10));
+GC=1/FC;
+
+//(a)Overall Noise Figure
+//Usinng F=(F1+((F2-1)/G1)+((F3-1)(G1*G2)));
+
+Fa=(F1+((FC-1)/G1)+((F2-1)/(G1*GC)));
+FadB=(10*(log10(Fa)));
+disp('db',FadB,'Overall Noise Figure:');
+
+
+//(b)Noise figure, if pre-amplifier is removed and gain increased by 20dB
+
+Fb=FC+((F2-1)/GC);
+FbdB=(10*(log10(Fb)));
+disp('db',FbdB,'Overall Noise Figure:');
+
+//(c)Change in noise figure
+//Again usinng F=(F1+((F2-1)/G1)+((F3-1)(G1*G2)));
+Fc=(FC+((F1-1)/GC)+((F2-1)/(G1*GC)));
+FcdB=(10*(log10(Fc)));
+
+disp('db',FcdB,'Overall Noise Figure:');