removing problem statements

1 files changed, 299 insertions, 307 deletions

diff --git a/Microwave_and_Radar_Engineering/Chapter_11.ipynb b/Microwave_and_Radar_Engineering/Chapter_11.ipynb
index 8ad823b1..afe53dd6 100644
--- a/Microwave_and_Radar_Engineering/Chapter_11.ipynb
+++ b/Microwave_and_Radar_Engineering/Chapter_11.ipynb
@@ -1,308 +1,300 @@
-{

- "metadata": {

-  "name": "Chapter 11"

- },

- "nbformat": 3,

- "nbformat_minor": 0,

- "worksheets": [

-  {

-   "cells": [

-    {

-     "cell_type": "heading",

-     "level": 1,

-     "metadata": {},

-     "source": [

-      "Chapter 11: Radars"

-     ]

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.1, Page number 504"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Calculate maximum range of radar system'''\n",

-      "\n",

-      "import math\n",

-      "\n",

-      "#Variable declaraion\n",

-      "lamda = 3.*10**-2#operating unit(cm)\n",

-      "Pt = 600.*10**3  #peak pulse power(W)\n",

-      "Smin = 10.**-13  #minimum detectable signal(W)\n",

-      "Ae = 5.          #m^2\n",

-      "sigma = 20.      #cross sectional area(m^2)\n",

-      "\n",

-      "#Calculations\n",

-      "Rmax = ((Pt*Ae**2*sigma)/(4*math.pi*lamda**2*Smin))**0.25\n",

-      "Rmax_nau = Rmax/1.853\n",

-      "\n",

-      "#Result\n",

-      "print \"The maximum range of radar system is\",round((Rmax/1E+3),2),\"km\"\n",

-      "print \"The maximum range of radar system in nautical miles is\",round((Rmax_nau/1E+3),2),\"nm\""

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The maximum range of radar system is 717.66 km\n",

-        "The maximum range of radar system in nautical miles is 387.29 nm\n"

-       ]

-      }

-     ],

-     "prompt_number": 25

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.2, Page number 504"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Find maximum range possible of an antenna'''\n",

-      "\n",

-      "#Variable declaration\n",

-      "Pt = 250.*10**3  #peak pulse power(W)\n",

-      "Smin = 10.**-14  #minimum detectable signal(W)\n",

-      "Ae = 10.         #m^2\n",

-      "sigma = 2.       #cross sectional area(m^2)\n",

-      "f = 10*10**9     #frequency(Hz)\n",

-      "c = 3*10**8      #velocity of propagation(m/s)\n",

-      "G = 2500         #power gain of antenna\n",

-      "\n",

-      "#Calculations\n",

-      "lamda = c/f\n",

-      "Rmax = ((Pt*G*Ae*sigma)/((4*math.pi)**2*Smin))**0.25\n",

-      "\n",

-      "#Result\n",

-      "print \"Maximum range possible of the antenna is\",round((Rmax/1E+3),2),\"km\""

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "Maximum range possible of the antenna is 298.28 km\n"

-       ]

-      }

-     ],

-     "prompt_number": 30

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.3, Page number 504"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Determine the cross section the radar can sight'''\n",

-      "\n",

-      "import math\n",

-      "\n",

-      "#Variable declaration\n",

-      "Pt = 250.*10**3   #peak pulse power(W)\n",

-      "f = 10.*10**9     #frequency(Hz)\n",

-      "c = 3.*10**8      #velocity of propagation(m/s)\n",

-      "G = 4000          #power gain of antenna\n",

-      "R = 50*10**3      #range(m)\n",

-      "Pr = 10**-11      #minimum detectable signal(W)\n",

-      "\n",

-      "#Calculations\n",

-      "lamda = c/f\n",

-      "Ae = (G*lamda**2)/(4*math.pi)\n",

-      "sigma = (Pr*((4*math.pi*R**2)**2))/(Pt*G*Ae)\n",

-      "\n",

-      "#Result\n",

-      "print \"The radar can sight cross section area of\",round(sigma,2),\"m^2\""

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The radar can sight cross section area of 34.45 m^2\n"

-       ]

-      }

-     ],

-     "prompt_number": 37

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.4, Page number 505"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Determine - \n",

-      "a)Unambigous range\n",

-      "b)duy cycle\n",

-      "c)average power\n",

-      "d)bandwidth of radar'''\n",

-      "\n",

-      "#Variable declaration\n",

-      "Pt = 400*10**3     #transmitted power(W)\n",

-      "prf = 1500.        #pulse repitiion frequency(pps)\n",

-      "tw = 0.8*10**-6    #pulse width(sec)\n",

-      "c = 3.*10**8       #velocity of propagation(m/s)\n",

-      "\n",

-      "#Calculations\n",

-      "#Part a\n",

-      "Run = c/(2*prf)\n",

-      "\n",

-      "#Part b\n",

-      "dc = tw/(1/prf)\n",

-      "\n",

-      "#Part c\n",

-      "Pav = Pt*dc\n",

-      "\n",

-      "#Part d\n",

-      "n1 = 1\n",

-      "BW1 = n1/tw\n",

-      "\n",

-      "n2 = 1.4\n",

-      "BW2 = n2/tw\n",

-      "\n",

-      "#Results\n",

-      "print \"The radar's unambiguous range is\",round((Run/1E+3),2),\"km\"\n",

-      "print \"The duty cycle for radar is\",dc\n",

-      "print \"The average power is\",round(Pav,2),\"W\"\n",

-      "print \"Bandwidth range for radar is\",(BW1/1E+6),\"MHz and\",(BW2/1E+6),\"MHz\""

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The radar's unambiguous range is 100.0 km\n",

-        "The duty cycle for radar is 0.0012\n",

-        "The average power is 480.0 W\n",

-        "Bandwidth range for radar is 1.25 MHz and 1.75 MHz\n"

-       ]

-      }

-     ],

-     "prompt_number": 47

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.5, Page number 505"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Find the maximum detection range'''\n",

-      "\n",

-      "import math\n",

-      "\n",

-      "#Variable declaration\n",

-      "Pt = 2.5*10**6    #power output(W)\n",

-      "D = 5             #antenna diameter(m)\n",

-      "sigma = 1         #cross sectional area of target(m^2)\n",

-      "B = 1.6*10**6     #receiver bandwidth(Hz)\n",

-      "c = 3.*10**8      #velocity of propagation(m/s)\n",

-      "Nf = 12.           #noise figure(dB)\n",

-      "f = 5*10**9       #frequency(Hz)\n",

-      "\n",

-      "#Calculations\n",

-      "lamda = c/f\n",

-      "F = 10**(Nf/10)\n",

-      "Rmax = 48*(((Pt*D**4*sigma)/(B*lamda**2*(F-1)))**0.25)\n",

-      "\n",

-      "#Result\n",

-      "print \"The maximum detection range is\",round(Rmax,2),\"km\""

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The maximum detection range is 558.04 km\n"

-       ]

-      }

-     ],

-     "prompt_number": 57

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 11.6, Page number 506"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "'''Find the maximum range and the effect of doubling the transmitter power'''\n",

-      "\n",

-      "import math \n",

-      "\n",

-      "#Variable declaration\n",

-      "Rmax = 30   #maximum range of radar(km)\n",

-      "n = 50      #no. of echos\n",

-      "\n",

-      "#Calculation\n",

-      "R = Rmax*math.sqrt(math.sqrt(n))\n",

-      "\n",

-      "#After doubling the power\n",

-      "R1 = math.sqrt(math.sqrt(2))\n",

-      "\n",

-      "#Results\n",

-      "print \"Maximum range with echoing of 50 times is\",round(R,2),\"km\"\n",

-      "print \"If transmitter power is doubled, range would increase by a factor of\",round(R1,2)"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "Maximum range with echoing of 50 times is 79.77 km\n",

-        "If transmitter power is doubled, range would increase by a factor of 1.19\n"

-       ]

-      }

-     ],

-     "prompt_number": 61

-    }

-   ],

-   "metadata": {}

-  }

- ]

+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:efd0e56c04d2245e98b2287a63fba67799b88e9847372ba4c5f3c4cf5de91c4c"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 11: Radars"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.1, Page number 504"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "import math\n",
+      "\n",
+      "#Variable declaraion\n",
+      "lamda = 3.*10**-2#operating unit(cm)\n",
+      "Pt = 600.*10**3  #peak pulse power(W)\n",
+      "Smin = 10.**-13  #minimum detectable signal(W)\n",
+      "Ae = 5.          #m^2\n",
+      "sigma = 20.      #cross sectional area(m^2)\n",
+      "\n",
+      "#Calculations\n",
+      "Rmax = ((Pt*Ae**2*sigma)/(4*math.pi*lamda**2*Smin))**0.25\n",
+      "Rmax_nau = Rmax/1.853\n",
+      "\n",
+      "#Result\n",
+      "print \"The maximum range of radar system is\",round((Rmax/1E+3),2),\"km\"\n",
+      "print \"The maximum range of radar system in nautical miles is\",round((Rmax_nau/1E+3),2),\"nm\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The maximum range of radar system is 717.66 km\n",
+        "The maximum range of radar system in nautical miles is 387.29 nm\n"
+       ]
+      }
+     ],
+     "prompt_number": 25
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.2, Page number 504"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "#Variable declaration\n",
+      "Pt = 250.*10**3  #peak pulse power(W)\n",
+      "Smin = 10.**-14  #minimum detectable signal(W)\n",
+      "Ae = 10.         #m^2\n",
+      "sigma = 2.       #cross sectional area(m^2)\n",
+      "f = 10*10**9     #frequency(Hz)\n",
+      "c = 3*10**8      #velocity of propagation(m/s)\n",
+      "G = 2500         #power gain of antenna\n",
+      "\n",
+      "#Calculations\n",
+      "lamda = c/f\n",
+      "Rmax = ((Pt*G*Ae*sigma)/((4*math.pi)**2*Smin))**0.25\n",
+      "\n",
+      "#Result\n",
+      "print \"Maximum range possible of the antenna is\",round((Rmax/1E+3),2),\"km\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Maximum range possible of the antenna is 298.28 km\n"
+       ]
+      }
+     ],
+     "prompt_number": 30
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.3, Page number 504"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "Pt = 250.*10**3   #peak pulse power(W)\n",
+      "f = 10.*10**9     #frequency(Hz)\n",
+      "c = 3.*10**8      #velocity of propagation(m/s)\n",
+      "G = 4000          #power gain of antenna\n",
+      "R = 50*10**3      #range(m)\n",
+      "Pr = 10**-11      #minimum detectable signal(W)\n",
+      "\n",
+      "#Calculations\n",
+      "lamda = c/f\n",
+      "Ae = (G*lamda**2)/(4*math.pi)\n",
+      "sigma = (Pr*((4*math.pi*R**2)**2))/(Pt*G*Ae)\n",
+      "\n",
+      "#Result\n",
+      "print \"The radar can sight cross section area of\",round(sigma,2),\"m^2\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The radar can sight cross section area of 34.45 m^2\n"
+       ]
+      }
+     ],
+     "prompt_number": 37
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.4, Page number 505"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "#Variable declaration\n",
+      "Pt = 400*10**3     #transmitted power(W)\n",
+      "prf = 1500.        #pulse repitiion frequency(pps)\n",
+      "tw = 0.8*10**-6    #pulse width(sec)\n",
+      "c = 3.*10**8       #velocity of propagation(m/s)\n",
+      "\n",
+      "#Calculations\n",
+      "#Part a\n",
+      "Run = c/(2*prf)\n",
+      "\n",
+      "#Part b\n",
+      "dc = tw/(1/prf)\n",
+      "\n",
+      "#Part c\n",
+      "Pav = Pt*dc\n",
+      "\n",
+      "#Part d\n",
+      "n1 = 1\n",
+      "BW1 = n1/tw\n",
+      "\n",
+      "n2 = 1.4\n",
+      "BW2 = n2/tw\n",
+      "\n",
+      "#Results\n",
+      "print \"The radar's unambiguous range is\",round((Run/1E+3),2),\"km\"\n",
+      "print \"The duty cycle for radar is\",dc\n",
+      "print \"The average power is\",round(Pav,2),\"W\"\n",
+      "print \"Bandwidth range for radar is\",(BW1/1E+6),\"MHz and\",(BW2/1E+6),\"MHz\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The radar's unambiguous range is 100.0 km\n",
+        "The duty cycle for radar is 0.0012\n",
+        "The average power is 480.0 W\n",
+        "Bandwidth range for radar is 1.25 MHz and 1.75 MHz\n"
+       ]
+      }
+     ],
+     "prompt_number": 47
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.5, Page number 505"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "Pt = 2.5*10**6    #power output(W)\n",
+      "D = 5             #antenna diameter(m)\n",
+      "sigma = 1         #cross sectional area of target(m^2)\n",
+      "B = 1.6*10**6     #receiver bandwidth(Hz)\n",
+      "c = 3.*10**8      #velocity of propagation(m/s)\n",
+      "Nf = 12.           #noise figure(dB)\n",
+      "f = 5*10**9       #frequency(Hz)\n",
+      "\n",
+      "#Calculations\n",
+      "lamda = c/f\n",
+      "F = 10**(Nf/10)\n",
+      "Rmax = 48*(((Pt*D**4*sigma)/(B*lamda**2*(F-1)))**0.25)\n",
+      "\n",
+      "#Result\n",
+      "print \"The maximum detection range is\",round(Rmax,2),\"km\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The maximum detection range is 558.04 km\n"
+       ]
+      }
+     ],
+     "prompt_number": 57
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.6, Page number 506"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "import math \n",
+      "\n",
+      "#Variable declaration\n",
+      "Rmax = 30   #maximum range of radar(km)\n",
+      "n = 50      #no. of echos\n",
+      "\n",
+      "#Calculation\n",
+      "R = Rmax*math.sqrt(math.sqrt(n))\n",
+      "\n",
+      "#After doubling the power\n",
+      "R1 = math.sqrt(math.sqrt(2))\n",
+      "\n",
+      "#Results\n",
+      "print \"Maximum range with echoing of 50 times is\",round(R,2),\"km\"\n",
+      "print \"If transmitter power is doubled, range would increase by a factor of\",round(R1,2)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Maximum range with echoing of 50 times is 79.77 km\n",
+        "If transmitter power is doubled, range would increase by a factor of 1.19\n"
+       ]
+      }
+     ],
+     "prompt_number": 61
+    }
+   ],
+   "metadata": {}
+  }
+ ]
 }
\ No newline at end of file