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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 /3415/CH11/EX11.7 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
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| -rw-r--r-- | 3415/CH11/EX11.7/Ex11_7.JPG | bin | 0 -> 46555 bytes | |||
| -rw-r--r-- | 3415/CH11/EX11.7/Ex11_7.sce | 19 |
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diff --git a/3415/CH11/EX11.7/Ex11_7.JPG b/3415/CH11/EX11.7/Ex11_7.JPG Binary files differnew file mode 100644 index 000000000..15b717355 --- /dev/null +++ b/3415/CH11/EX11.7/Ex11_7.JPG diff --git a/3415/CH11/EX11.7/Ex11_7.sce b/3415/CH11/EX11.7/Ex11_7.sce new file mode 100644 index 000000000..f65dd3c48 --- /dev/null +++ b/3415/CH11/EX11.7/Ex11_7.sce @@ -0,0 +1,19 @@ +//fiber optic communications by joseph c. palais
+//example 11.7
+//OS=Windows XP sp3
+clc
+clear all
+//given
+Pi=2e-12//signal power in W
+K=1.38e-23//temperature in kelvin
+deltaf=1e7//bandwidth in Hz
+TA=300//Ambient temperature in Kelvin
+T=454//noise temperature in Kelvin
+PNT=1.66*10^-11//thermal noise power in W at 300K
+G=10//power gain of amplifier in dB
+//to find
+Te=T+TA//equivalent noise temperature in Kelvin
+PN=4*K*Te*deltaf//Noise power in W
+SNR=Pi/PN//Signal to noise ratio
+SNRdb=10*log10(SNR)//Signal to noise ratio in dB
+mprintf("Output Signal to noise ratio=%fdB",SNRdb)
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