From 8048392490bd2efe0fdfa001945f663cba969841 Mon Sep 17 00:00:00 2001
From: nice
Date: Thu, 9 Oct 2014 18:07:00 +0530
Subject: updated books

---
 Modern_Electronics_Communication/chapter8.ipynb | 190 ++++++++++++++++++++++++
 1 file changed, 190 insertions(+)
 create mode 100755 Modern_Electronics_Communication/chapter8.ipynb

(limited to 'Modern_Electronics_Communication/chapter8.ipynb')

diff --git a/Modern_Electronics_Communication/chapter8.ipynb b/Modern_Electronics_Communication/chapter8.ipynb
new file mode 100755
index 00000000..b7931b29
--- /dev/null
+++ b/Modern_Electronics_Communication/chapter8.ipynb
@@ -0,0 +1,190 @@
+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "chapter 8 Digital Communication-Coding Techniques"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 8.1 Page no 357"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#given\n",
+      "fa=20*10**3\n",
+      "\n",
+      "#calculation\n",
+      "fs=2*fa                                     #minimum sample rate\n",
+      "\n",
+      "#result\n",
+      "print\"maximum sample rate\",\"is greater than equal to\",fs,\"Hz\"        #frequency\n",
+      "  "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "maximum sample rate is greater than equal to 40000 Hz\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 8.2 Page no 362"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#given\n",
+      "dr=55\n",
+      "\n",
+      "#calculation\n",
+      "import math\n",
+      "n=(dr/6.02)\n",
+      "l=2**10\n",
+      "y=10*math.log10(3*(l**2))             #signal-to-quantization-noise level\n",
+      "x=(1.76+(6.02*10))                    #signal-to-noise ratio for digitizing system\n",
+      "\n",
+      "#result\n",
+      "print\"(S/N)q =\",round(y,2),\"dB\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(S/N)q = 64.98 dB\n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 8.3 Page no 368"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#given\n",
+      "R=100.0*10**3                    #resistance, ohm\n",
+      "Rf=10*10**3\n",
+      "Vref=-10                         #reference voltage\n",
+      "\n",
+      "#calculation\n",
+      "Vo=-(Vref)*(Rf/R)                # resolution\n",
+      "a=(10/100.0)\n",
+      "b=(10/50.0)\n",
+      "c=(10/25.0)\n",
+      "d=(10/12.5)\n",
+      "V=-(Vref)*(a+b+c+d)              #output voltage\n",
+      "\n",
+      "#result\n",
+      "print\"The step-size is \",Vo\n",
+      "print\"output voltage = \",V,\"volts\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The step-size is  1.0\n",
+        "output voltage =  15.0 volts\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 8.4 Page no 375"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#given\n",
+      "d=2                     #Dmin\n",
+      "d1=3\n",
+      "d2=4\n",
+      "\n",
+      "#calculation\n",
+      "x=d-1               \n",
+      "a=(d/2.0)-1\n",
+      "y=d1-1\n",
+      "b=1/2.0*(d1-1)\n",
+      "z=d2-1\n",
+      "c=(d2/2.0)-1 \n",
+      "#part (a)\n",
+      "\n",
+      "#result\n",
+      "print\"(a) the no. of error detected for the distance 2 is \",x\n",
+      "print\" the no. of errors corrected  = \",a\n",
+      "print\"(b) the no. of error detected for the distance 3 is \",y\n",
+      "print\" the no. of errors corrected  = \",b\n",
+      "print\"(c) the no. of error detected for the distance 4 is \",z\n",
+      "print\" the no. of errors corrected  = \",c\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(a) the no. of error detected for the distance 2 is  1\n",
+        " the no. of errors corrected  =  0.0\n",
+        "(b) the no. of error detected for the distance 3 is  2\n",
+        " the no. of errors corrected  =  1.0\n",
+        "(c) the no. of error detected for the distance 4 is  3\n",
+        " the no. of errors corrected  =  1.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 15
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file
-- 
cgit