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Diffstat (limited to '1895/CH6/EX6.21')
| -rwxr-xr-x | 1895/CH6/EX6.21/EXAMPLE6_21.SCE | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/1895/CH6/EX6.21/EXAMPLE6_21.SCE b/1895/CH6/EX6.21/EXAMPLE6_21.SCE new file mode 100755 index 000000000..263e982dd --- /dev/null +++ b/1895/CH6/EX6.21/EXAMPLE6_21.SCE @@ -0,0 +1,26 @@ +//ANALOG AND DIGITAL COMMUNICATION
+//BY Dr.SANJAY SHARMA
+//CHAPTER 6
+//NOISE
+clear all;
+clc;
+printf("EXAMPLE 6.21(PAGENO 311)");
+
+//given from the figure
+G_1ratio = 1000//gain of master amplifier
+G_2ratio = 100//gain of TWT
+G_3ratio = 10000//gain of mixer and IF amplifier
+F_2ratio = 4//noise figure of TWT
+F_3ratio = 16//noise figure of mixer and IF amplifier
+T_0 =273 + 17//ambident temperature in degree kelvin
+T_e1 = 5//temperature of master amplifier in degree kelvin
+
+//calculaitons
+F_1 = 1 + (T_e1/T_0);//noise figure of master amplifier
+F = F_1 + ((F_2ratio - 1)/(G_1ratio)) + ((F_3ratio - 1)/(G_2ratio*G_1ratio));//Overall noise figure
+F_dB = 10*log10(F);//overall noise figure in dB
+T_e = (F - 1)*T_0;//overall noise temperature of the receiver
+
+//results
+ printf("\n\ni.Overall noise temperature of the receiver =%.2f degreekelvin",T_e);
+ printf("\n\nii.Overall noise figure = %.6f dB", F_dB);
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