add/remove books

1 files changed, 96 insertions, 0 deletions

diff --git a/Optical_Communiation_by_Anasuya_Kalavar/chapter10.ipynb b/Optical_Communiation_by_Anasuya_Kalavar/chapter10.ipynb
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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:0e6d6451a42a64c2f14a17049d585a97e1d159d84d0a7abf55f333e84dfeeece"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "chapter10 - Performance measurement and monitoring"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 10.5.1, page 10-24"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from numpy import sqrt\n",
+      "from __future__ import division\n",
+      "To=12.6     #width of output pulse\n",
+      "Ti=0.3      #width of input pulse\n",
+      "l=1.2       #length of measurement\n",
+      "Pulse_dispersion = sqrt(To**2 - Ti**2)    #computing pulse dispersion\n",
+      "PDKM=Pulse_dispersion/l         #computing pulse dispersion per Kilometer\n",
+      "BW=0.44/PDKM        #computing optical bandwidth\n",
+      "BW=BW*1000 \n",
+      "print \"Pulse broadning is %.1f ns/km.\\nOptical bandwidth is %.1f MHz.Km.\" %(PDKM,BW) "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Pulse broadning is 10.5 ns/km.\n",
+        "Optical bandwidth is 41.9 MHz.Km.\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 10.6.1, page 10-28"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from numpy import log10\n",
+      "V2=12 \n",
+      "V1=2.5 \n",
+      "L2=3 \n",
+      "L1=0.004 \n",
+      "alpha_dB = 10* log10(V2/V1)/(L2-L1) \n",
+      "un = 0.2/(L2-L1) \n",
+      "print \"Attenuation is %.2f dB/km\\nUncertainity +/- %.3f dB.\" %(alpha_dB,un) \n",
+      "#answer for attenuation in the book is wrong."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Attenuation is 2.27 dB/km\n",
+        "Uncertainity +/- 0.067 dB.\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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