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Diffstat (limited to 'Modern_Electronics_Communication/chapter7.ipynb')
| -rwxr-xr-x | Modern_Electronics_Communication/chapter7.ipynb | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/Modern_Electronics_Communication/chapter7.ipynb b/Modern_Electronics_Communication/chapter7.ipynb new file mode 100755 index 00000000..39f04dbf --- /dev/null +++ b/Modern_Electronics_Communication/chapter7.ipynb @@ -0,0 +1,243 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 7 Communication Techniques"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 7.6 Page no 304"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#given\n",
+ "Q=60\n",
+ "IF=455*10**3\n",
+ "x=680.0*10**3\n",
+ "\n",
+ "#calculation\n",
+ "import math\n",
+ "imf=x+2*(IF) #image frequency\n",
+ "a=(imf/x)\n",
+ "b=(x/imf)\n",
+ "c=(Q*(a-b))\n",
+ "d=20*math.log10(c)\n",
+ "\n",
+ "#result\n",
+ "print\"The image frequency is \",imf,\"Hz\"\n",
+ "print\"image rejection = \",round(d,3),\"dB\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The image frequency is 1590000.0 Hz\n",
+ "image rejection = 41.186 dB\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 7.7 Page no 314"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#given\n",
+ "NF=20.0\n",
+ "df=10**6\n",
+ "\n",
+ "#calculation\n",
+ "x=10*math.log10(df)\n",
+ "S=-174+NF+x\n",
+ "a=5 #input intercept\n",
+ "dr=2/3.0*(a-S)\n",
+ "\n",
+ "#result\n",
+ "print\"S= \",S,\"dB\"\n",
+ "print\"dynamic range= \",dr,\"dB\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "S= -94.0 dB\n",
+ "dynamic range= 66.0 dB\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 7.8 Page no 315"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#given\n",
+ "nf=5.0\n",
+ "x=24.0\n",
+ "y=20.0\n",
+ "\n",
+ "#calculation\n",
+ "import math\n",
+ "NR0=10**(nf/10.0)\n",
+ "NR1=10**(y/10.0)\n",
+ "PG1=10**(x/10.0)\n",
+ "NR=NR0+((NR1-1)/PG1)\n",
+ "NF=10*math.log10(NR)\n",
+ "S=-174+NF+60\n",
+ "a=nf-x #the system's third-order intercept point \n",
+ "dr=2/3.0*(a-S)\n",
+ "\n",
+ "#result\n",
+ "print\"NR1 = \",round(NR0,3)\n",
+ "print\"NR2 = \",NR1\n",
+ "print\"PG1= = \",round(PG1,3)\n",
+ "print\"NR = \",round(NR,3),\"dB\"\n",
+ "print\"NF = \",round(NF,3),\"dB\" #total system noise figure\n",
+ "print\"S = \",round(S,3),\"dBm\" #sensitivity\n",
+ "print\"the systems third-order intercept point is\",a,\"dB\"\n",
+ "print\"dynamic range = \",round(dr,1),\"dB\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "NR1 = 3.162\n",
+ "NR2 = 100.0\n",
+ "PG1= = 251.189\n",
+ "NR = 3.556 dB\n",
+ "NF = 5.51 dB\n",
+ "S = -108.49 dBm\n",
+ "the systems third-order intercept point is -19.0 dB\n",
+ "dynamic range = 59.7 dB\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 7.9 Page no 315"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#given\n",
+ "x=24\n",
+ "nf=-5\n",
+ "NR = 3.16+(99/10.0)\n",
+ "\n",
+ "#calculation\n",
+ "import math\n",
+ "NF = 10*math.log10(NR)\n",
+ "S=-174+NF+60\n",
+ "dr = 2/3.0*(nf-S)\n",
+ "\n",
+ "#result\n",
+ "print\"NR = \",NR #noise ratio\n",
+ "print\"NF = \",round(NF,3),\"dB\" #noise figure\n",
+ "print\"S = \",round(S,3),\"dBm\" #sensitivity\n",
+ "print\"dynamic range = \",round(dr,3),\"dB\"\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "NR = 13.06\n",
+ "NF = 11.159 dB\n",
+ "S = -102.841 dBm\n",
+ "dynamic range = 65.227 dB\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 7.10 Page no 329"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#given\n",
+ "x=0.40*100*10**6\n",
+ "y=(100*10**6/(2.0**32))\n",
+ "#fCLK is reference oscillator\n",
+ "\n",
+ "#result\n",
+ "print\"The maximum output frequency is approximately 40 percent of fCLK MAX\",x,\"Hz\"\n",
+ "print\"The frequency resolution is given by \",round(y,3),\"Hz\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The maximum output frequency is approximately 40 percent of fCLK MAX 40000000.0 Hz\n",
+ "The frequency resolution is given by 0.023 Hz\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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