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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter11 Pulse Modulation"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.3.1,Pg.no.392"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The no . of bits per code word is 7.512\n",
+      "Rounded off to 8\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "SNR=40.0\n",
+    "#a) Determination of no . of bits /code\n",
+    "n=(SNR -(10*math.log10(3))-(-10))/(20*math.log10(2))\n",
+    "n=round(n,3)\n",
+    "print 'The no . of bits per code word is',n\n",
+    "print 'Rounded off to 8'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.3.2,Pg.no.393"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a)The transmission BW is 64000.0 Hz\n",
+      "b)The quantization S/N ration is 48.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "q=1.0\n",
+    "W=4*10**3\n",
+    "n=8.0\n",
+    "#a) Determination of Tx Bandwidth\n",
+    "B=(1+q)*W*n\n",
+    "print 'a)The transmission BW is',B,'Hz'\n",
+    "#b) Determination of quantization S/N ratio\n",
+    "SN_dB=6*n\n",
+    "print 'b)The quantization S/N ration is',SN_dB"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 2",
+   "language": "python",
+   "name": "python2"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.10"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}