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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 /761/CH20/EX20.7/20_7.sce | |
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initial commit / add all books
Diffstat (limited to '761/CH20/EX20.7/20_7.sce')
| -rwxr-xr-x | 761/CH20/EX20.7/20_7.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/761/CH20/EX20.7/20_7.sce b/761/CH20/EX20.7/20_7.sce new file mode 100755 index 000000000..242d3ba2a --- /dev/null +++ b/761/CH20/EX20.7/20_7.sce @@ -0,0 +1,23 @@ +clc;
+// page no 761
+// prob no 20.7
+// refer prob no 20.5
+d=38000;//distance of satellite from the Earth surface
+P=50;//transmitter power
+G=30;//antenna gain
+f=12000;//frequency in MHz
+B=10^6;// Bandwidth in MHz
+//from problem no 2.5
+G_T=21;
+L_misc=0;
+k_dBW=-228.6;//Boltzmann's constant in dBW
+// There are no miscellaneous loss
+//The stellite transmitting power in dBW is
+Pt_dBW = 10*log10(P);
+// The EIPR in dBW
+EIRP_dBW=Pt_dBW + G;
+//FSL in dB
+FSL_dB= 32.44 + (20*log10(d)) + (20*log10(f));
+// The carrier to noise ratio is
+ratio=EIRP_dBW - FSL_dB - L_misc + G_T - k_dBW - 10*log10(B);
+disp('dB',ratio,'The carrier to noise ratio at the receiver is');
\ No newline at end of file |