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   "source": [
    "# Chapter 11:Digital Signal Processing"
   ]
  },
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   "metadata": {},
   "source": [
    "## Ex11.1:pg-509"
   ]
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     "text": [
      "\n",
      " The number of the taps =  47.0\n"
     ]
    }
   ],
   "source": [
    "# Example 11.1\n",
    "# Calculation of the minimum number of taps needed to compensate for the fiber dispersion\n",
    "# Page no 509\n",
    "\n",
    "import math\n",
    "\n",
    "# Given data\n",
    "b=22*10**-27;                 # Power launched in port 1\n",
    "l=800*10**3;                  # Power launched in port 2\n",
    "T=50*10**-12;                # Power launched in port 3 \n",
    "\n",
    "\n",
    "# Bit rate of communication system\n",
    "k=math.ceil((math.pi*b*l)/T**2);\n",
    "n=(2*k)+1;\n",
    "\n",
    "\n",
    "# Displaying results in the command window            \n",
    "print \"\\n The number of the taps = \",round(n,3)\n",
    "# The answers vary due to round off error\n"
   ]
  }
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