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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:e528d450b010e6a0fc0701d08e663db71f95558ee29c88e64def041726f96bfa"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 3: Amplitude Modulation Techniques"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.1, page no. 36"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "L        = 50.0*pow(10,-6)     # Transmitter Inductance (H)\n",
+      "C        = 1.0*pow(10,-9)      # Transmitter Capacitance (F)\n",
+      "AF_range = 10*pow(10,3)        # Audio Frequency Range (Hz)\n",
+      "\n",
+      "# Calculation\n",
+      "import math  # Math Library\n",
+      "fc= 1/(2*math.pi*math.sqrt(L*C))# Center Frequency (Hz)\n",
+      "fl= fc-AF_range# Frequency of LSB (Hz)\n",
+      "fu= fc+AF_range# Frequency of USB (Hz)\n",
+      "\n",
+      "# Result\n",
+      "print \"Center Frequency, fc= \",math.ceil(fc/pow(10,3)),\"kHz\"\n",
+      "print \"Frequency Range occupied by the Sidebands is\",math.ceil(fl/pow(10,3)),\"to\",math.ceil(fu/pow(10,3)),\"kHz\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Center Frequency, fc=  712.0 kHz\n",
+        "Frequency Range occupied by the Sidebands is 702.0 to 722.0 kHz\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.2, page no. 38"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_c  = 400                   # Carrier Power (W)\n",
+      "m    = 0.75                  # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                  # Math Library\n",
+      "P_AM = P_c*(1+pow(m,2)/2)    # Total Power in the modulated Wave (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"Total Power in the Modulated Wave is\",P_AM,\"W\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Total Power in the Modulated Wave is 512.5 W\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.3, page no. 39"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_t = 10000                     # Radio Transmitter Power (W)\n",
+      "m   = 0.60                      # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                     # Math Library\n",
+      "P_c = P_t/(1+pow(m,2)/2)        # Carrier Power (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"Carrier Power is\",round(P_c/pow(10,3),2),\"kW\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Carrier Power is 8.47 kW\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.4, page no. 39"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "I_t  = 8.93           # Total Antenna current (A) \n",
+      "I_c  = 8              # Carrier Antenna Current (A)\n",
+      "m    = 0.80           # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                            # Math Library\n",
+      "m1   = math.sqrt(2*(pow(I_t/I_c,2)-1)) # Percentage Modulation (%)\n",
+      "I_t1 = I_c*math.sqrt(1+pow(m,2)/2)     # Antenna Current (A)\n",
+      "\n",
+      "# Result\n",
+      "print \"Modulation Index calculated for first part is\",round(m1*100,1),\"%\"\n",
+      "print \"Antenna Current calculated for second part is\",round(I_t1,2),\"A\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Modulation Index calculated for first part is 70.1 %\n",
+        "Antenna Current calculated for second part is 9.19 A\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.5, page no. 41\u00b6"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_t  = 10.125*pow(10,3)         # Total Power(W)\n",
+      "P_c  = 9.00*pow(10,3)           # Carrier Power(W)\n",
+      "m2   = 0.40               # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math      # Math Library\n",
+      "m1   = math.sqrt(2*(P_t/P_c-1))       # Modulation Index\n",
+      "mt   = math.sqrt(pow(m1,2)+pow(m2,2)) # Total Modulation index\n",
+      "P_AM = P_c*(1+pow(mt,2)/2)      # Total Radiated Power(W)\n",
+      "\n",
+      "# Result\n",
+      "print \"Modulation Index of first part is, m =\",m1\n",
+      "print \"Total Modulation Index is, m_t =\",round(mt,2)\n",
+      "print \"Total Radiated Power, P_AM =\",P_AM/pow(10,3),\"kW\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Modulation Index of first part is, m = 0.5\n",
+        "Total Modulation Index is, m_t = 0.64\n",
+        "Total Radiated Power, P_AM = 10.845 kW\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.6, page no. 41"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "I_t = 11                              # Total Antenna current (A) \n",
+      "I_T = 12                              # Total Antenna current for second part (A) \n",
+      "m1  = 0.40                            # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                           # Math Library\n",
+      "I_c = I_t/math.sqrt(1+pow(m1,2)/2)    # Current (A)\n",
+      "mt  = math.sqrt(2*(pow(I_T/I_c,2)-1)) # Modulation Index\n",
+      "m2  = math.sqrt(pow(mt,2)-pow(m1,2))  # Modulation Index\n",
+      "\n",
+      "# Result\n",
+      "print \"Modulation Index calculated is\",round(m2,2)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Modulation Index calculated is 0.64\n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.7, page no. 44"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_c     = 400              # Carrier Power (W)\n",
+      "m1      = 1.0              # Modulation Index (for first part)\n",
+      "m2      = 0.75             # Modulation Index (for second part)\n",
+      "\n",
+      "# Calculation\n",
+      "import math                # Math Library\n",
+      "# (i) Power saving of DSBSC compared to AM for 100% Modulation Depth\n",
+      "P_AM1=P_c*(1+pow(m1,2)/2)  # Power of AM Wave (W)\n",
+      "P_DSBSC1=P_c*pow(m1,2)/2   # Power of DSBSC Wave (W)\n",
+      "Saving1=P_AM1-P_DSBSC1     # Power Saving (W)\n",
+      "# (ii) Power Required for DSBSC Wave Transmission for 75% Modulation Depth\n",
+      "P_DSBSC2=P_c*pow(m2,2)/2   # Power of DSBSC Wave (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"(i)  Power of AM Wave for\",m1*100,\"% Modulation Depth is\",P_AM1,\"W\"\n",
+      "print \"     Power of DSBSC Wave for\",m1*100,\"% Modulation Depth is\",P_DSBSC1,\"W\"\n",
+      "print \"     Power saving of DSBSC compared to AM for\",m1*100,\"% Modulation Depth is\",Saving1,\"W\"\n",
+      "print \"(ii) Power Required for DSBSC Wave Transmission for\",m2*100,\"% Modulation Depth is\",P_DSBSC2,\"W\"\n",
+      "print \"     Power of DSBSC is maximum for m = 1, and less for m < 1.\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(i)  Power of AM Wave for 100.0 % Modulation Depth is 600.0 W\n",
+        "     Power of DSBSC Wave for 100.0 % Modulation Depth is 200.0 W\n",
+        "     Power saving of DSBSC compared to AM for 100.0 % Modulation Depth is 400.0 W\n",
+        "(ii) Power Required for DSBSC Wave Transmission for 75.0 % Modulation Depth is 112.5 W\n",
+        "     Power of DSBSC is maximum for m = 1, and less for m < 1.\n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.8, page no. 45"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_DSBSC = 1000                  # Total Power (W)\n",
+      "m       = 0.60                  # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                     # Math Library\n",
+      "P_c     = P_DSBSC*(2/pow(m,2))  # Carrier Power (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"We require\",round(P_c/pow(10,3),2),\"kW to transmit the carrier component along with the existing\",P_DSBSC/pow(10,3),\" kW for the sidebands.\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "We require 5.56 kW to transmit the carrier component along with the existing 1  kW for the sidebands.\n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.9, page no.48"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_c      = 400                                          # Carrier Power (W)\n",
+      "m1       = 1.0                                          # Modulation Index (for first part)\n",
+      "m2       = 0.75                                         # Modulation Index (for second part)\n",
+      "\n",
+      "# Calculation\n",
+      "import math                                             # Math Library\n",
+      "# (i) Power saving of SSB compared to AM AND DSBSC for 100% Modulation Depth\n",
+      "P_AM1    = P_c*(1+pow(m1,2)/2)                          # Power of AM Wave (w)\n",
+      "P_DSBSC1 = P_c*pow(m1,2)/2 # Power of DSBSC Wave (w)\n",
+      "P_SSB1   = P_c*pow(m1,2)/4 # Power of SSB Wave (w)\n",
+      "Saving1  = P_AM1-P_SSB1    # Power Saving (w)\n",
+      "Saving2  = P_DSBSC1-P_SSB1 # Power Saving (w)\n",
+      "# (ii) Power Required for SSB Wave Transmission for 75% Modulation Depth\n",
+      "P_SSB2   = P_c*pow(m2,2)/4                              # Power of SSB Wave (w)\n",
+      "\n",
+      "# Result\n",
+      "\n",
+      "print \"(i)  Power of SSB Wave for\",m1*100,\"% Modulation Depth is\",P_SSB1,\"W\"\n",
+      "print \"     Power saving of SSB compared to AM for\",m1*100,\"% Modulation Depth is\",Saving1,\"W and compared to DSBSC for\",m1*100,\"% Modulation Depth is\",Saving2,\"W\"\n",
+      "print \"(ii) Power Required for SSB Wave Transmission for\",m2*100,\"% Modulation Depth is\",P_SSB2,\"W\"\n",
+      "print \"     Power of SSB is maximum for m = 1, and less for m < 1.\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(i)  Power of SSB Wave for 100.0 % Modulation Depth is 100.0 W\n",
+        "     Power saving of SSB compared to AM for 100.0 % Modulation Depth is 500.0 W and compared to DSBSC for 100.0 % Modulation Depth is 100.0 W\n",
+        "(ii) Power Required for SSB Wave Transmission for 75.0 % Modulation Depth is 56.25 W\n",
+        "     Power of SSB is maximum for m = 1, and less for m < 1.\n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.10, page no. 49\u00b6"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_SSB = 0.5*pow(10,3)         # Total Power (W)\n",
+      "m     = 0.60                # Modulation Index\n",
+      "\n",
+      "# Calculation\n",
+      "import math                   # Math Library\n",
+      "P_c   = P_SSB*(4/pow(m,2))    # Carrier Power (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"We require\",round(P_c/pow(10,3),2),\"kW to transmit the carrier component along with the existing\",P_SSB/pow(10,3),\"kW for the one sideband and\",1-P_SSB/pow(10,3),\"kW more for another sideband.\"\n",
+      "print \"In Total\",round(P_c/pow(10,3)+1,2),\"kW is required by the AM Transmitter\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "We require 5.56 kW to transmit the carrier component along with the existing 0.5 kW for the one sideband and 0.5 kW more for another sideband.\n",
+        "In Total 6.56 kW is required by the AM Transmitter\n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.11, page no. 49"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "m1  = 1.0       # Modulation Index for (a)\n",
+      "m2  = 0.5       # Modulation Index for (b)\n",
+      "\n",
+      "# Calculation\n",
+      "import math                                        # Math Library\n",
+      "# (a) Percentage Power Saving for Depth of Modulation 100 %\n",
+      "PAM_by_Pc1  = 1+pow(m1,2)/2                        # Ratio of AM Wave to Carrier Power (W)\n",
+      "PSSB_By_Pc1 = pow(m1,2)/4                          # Ratio of SSB Wave to Carrier Power (W)\n",
+      "Saving1     = (PAM_by_Pc1-PSSB_By_Pc1)/PAM_by_Pc1  # Power Saving (W)\n",
+      "# (b) Percentage Power Saving for Depth of Modulation 50 %\n",
+      "PAM_by_Pc2  = 1+pow(m2,2)/2                        # Ratio of AM Wave to Carrier Power (W)\n",
+      "PSSB_By_Pc2 = pow(m2,2)/4                          # Ratio of SSB Wave to Carrier Power (W)\n",
+      "Saving2     = (PAM_by_Pc2-PSSB_By_Pc2)/PAM_by_Pc2  # Power Saving (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"(a)Percentage Power Saving for Depth of Modulation of\",m1,\"is\",round(Saving1*100,1),\"%\"\n",
+      "print \"(b)Percentage Power Saving for Depth of Modulation of\",m2,\"is\",round(Saving2*100,1),\"%\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(a)Percentage Power Saving for Depth of Modulation of 1.0 is 83.3 %\n",
+        "(b)Percentage Power Saving for Depth of Modulation of 0.5 is 94.4 %\n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.12, page no. 52"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_c      = 400                                  # Carrier Power (W)\n",
+      "m1       = 1.0                                  # Modulation Index (for first part)\n",
+      "m2       = 0.75                                 # Modulation Index (for second part)\n",
+      "x        = 0.2                                  # (*100)Percentage Wanted Sideband in VSB (%)\n",
+      "\n",
+      "# Calculation\n",
+      "import math                                     # Math Library\n",
+      "# (i) Power saving of VSB compared to AM, DSBSC and SSB for 100% Modulation Depth\n",
+      "P_AM1    = P_c*(1+pow(m1,2)/2)                  # Power of AM Wave (W)\n",
+      "P_DSBSC1 = P_c*pow(m1,2)/2                      # Power of DSBSC Wave (W)        \n",
+      "P_SSB1   = P_c*pow(m1,2)/4                      # Power of SSB Wave (W)\n",
+      "P_VSB1   = P_c*pow(m1,2)/4+x*P_c*pow(m1,2)/4    # Power of VSB Wave (W)\n",
+      "Saving1  = P_AM1-P_VSB1                         # Power Saving (W)\n",
+      "Saving2  = P_DSBSC1-P_VSB1                      # Power Saving (W)\n",
+      "Saving3  = P_VSB1-P_SSB1                        # Power Saving (W)\n",
+      "# (ii) Power Required for VSB Wave Transmission for 75% Modulation Depth\n",
+      "P_VSB2   = P_c*pow(m2,2)/4+x*P_c*pow(m2,2)/4    # Power of VSB Wave (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"(i)  Power Required for VSB Wave Transmission for\",m1*100,\"% Modulation Depth is\",P_VSB1,\"W\"\n",
+      "print \"     Power saving of VSB compared to AM for\",m1*100,\"% Modulation Depth is\",Saving1,\"W and compared to DSBSC for\",m1*100,\"% Modulation Depth is\",Saving2,\"W and compared to SSB for\",m1*100,\"% Modulation Depth is\",Saving3,\"W\"\n",
+      "print \"(ii) Power Required for VSB Wave Transmission for\",m2*100,\"% Modulation Depth is\",P_VSB2,\"W\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "(i)  Power Required for VSB Wave Transmission for 100.0 % Modulation Depth is 120.0 W\n",
+        "     Power saving of VSB compared to AM for 100.0 % Modulation Depth is 480.0 W and compared to DSBSC for 100.0 % Modulation Depth is 80.0 W and compared to SSB for 100.0 % Modulation Depth is 20.0 W\n",
+        "(ii) Power Required for VSB Wave Transmission for 75.0 % Modulation Depth is 67.5 W\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 3.13, page no. 52"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variable Declaration\n",
+      "P_VSB = 0.625*pow(10,3)          # Total Power (W)\n",
+      "m     = 0.60                     # Modulation Index\n",
+      "x     = 0.25                     # (*100) Percentage Power Transmitted of other Sideband (%)\n",
+      "\n",
+      "# Calculation\n",
+      "import math                        # Math Library\n",
+      "P_c   = P_VSB*(4/((1+x)*pow(m,2))) # Carrier Power (W)\n",
+      "\n",
+      "# Result\n",
+      "print \"We require\",round(P_c/pow(10,3),2),\"kW to transmit the carrier component along with the existing\",P_VSB/pow(10,3),\"kW for the one sideband and\",1-P_VSB/pow(10,3),\"kW more for rest of the other sidebands.\"\n",
+      "print \"In Total\",round(P_c/pow(10,3)+1,2),\"kW is required by AM Transmitter\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "We require 5.56 kW to transmit the carrier component along with the existing 0.625 kW for the one sideband and 0.375 kW more for rest of the other sidebands.\n",
+        "In Total 6.56 kW is required by AM Transmitter\n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file