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Diffstat (limited to '3542/CH2/EX2.3/ExB_3.sce')
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1 files changed, 24 insertions, 0 deletions
diff --git a/3542/CH2/EX2.3/ExB_3.sce b/3542/CH2/EX2.3/ExB_3.sce new file mode 100644 index 000000000..a86c003da --- /dev/null +++ b/3542/CH2/EX2.3/ExB_3.sce @@ -0,0 +1,24 @@ +// Example no B.3
+// To determine average output thermal noise power
+// Page no. 614
+
+clc;
+clear all;
+
+// Given data
+T0=300; // Ambient room temperature in K
+Fsys=8; // Noise figure of the system
+Tant=290; // Effective temperature of antenna in K
+K=1.38*10^-23; // Boltzmann's constant in J/K
+B=30000; // Effective bandwidth in Hz
+
+Te=(Fsys-1)*T0; // Effective noise temperature in K
+Ttotal=Tant+Te; // Overall system noise temperature in K
+
+// To determine average output thermal noise power
+Pn=(1+(Ttotal/T0))*K*T0*B; // Average output thermal noise power in W
+Pn=10*log10(Pn/(10^-3)); // Average output thermal noise power in dBm
+
+// Displaying the result in command window
+printf('\n Average output thermal noise power = %0.1f dBm',Pn);
+
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