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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /401/CH13/EX13.4/Example13_4.sce | |
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| -rwxr-xr-x | 401/CH13/EX13.4/Example13_4.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/401/CH13/EX13.4/Example13_4.sce b/401/CH13/EX13.4/Example13_4.sce new file mode 100755 index 000000000..860e83aad --- /dev/null +++ b/401/CH13/EX13.4/Example13_4.sce @@ -0,0 +1,22 @@ +//Example 13.4
+//Program to calculate the minimum incoming power level
+
+clear;
+clc ;
+close ;
+
+//Given data
+K=1; //CONSTANT FOR HETERODYNE DETECTION
+Z=1; //CONSTANT FOR FSK MODULAION SCHEME
+eeta=1; //*100 percent - QUANTUM EFFICIENCY
+Bt=400*10^6; //bps - TRANSMISSION RATE
+BER=10^(-9); //BIT ERROR RATE
+h= 6.626*10^(-34); //J/K - PLANK's CONSTANT
+c=2.998*10^8; //m/s - VELOCITY OF LIGHT IN VACCUM
+Lambda=1.55*10^(-6); //metre - OPERATING WAVELENGTH
+
+//Minimum incoming peak power level
+Ps=(erfinv(1-2*BER))^2*2*h*c*Bt/Lambda; //erfc(x)=1-erf(x)
+
+//Displaying the Result in Command Window
+printf("\n\n\t Minimum incoming peak power level is %0.1f nW or %0.1f dBm.",Ps/10^(-9),10*log10(Ps/(1*10^(-3))));
\ No newline at end of file |