Changes between Version 46 and Version 47 of Other/Summer/2015/aSDR1


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Timestamp:
Jul 29, 2015, 6:52:06 PM (9 years ago)
Author:
vineetrshenoy
Comment:

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  • Other/Summer/2015/aSDR1

    v46 v47  
    4444<table cellpadding=5 width=50%>
    4545   <tr>
    46    <td><center><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/gridLocations.png" height=250>
     46   <td><center><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/gridLocations.png" height=50>
    4747   </center></td></tr>
    4848   <tr>
    … …  
    5656}}}
    5757
     58[[BR]]
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     60[[BR]]
     61
    5862The photos below show what occurs before the signal is transmitted and after the signal is transmitted. The ASCII art below gives us a general idea of the signal amplitude, which is then measure directly with OMF (ORBIT Management Framework) commands.
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     64[[BR]]
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    5969
    6070{{{
    … …  
    8292[[BR]] [[BR]] [[BR]] [[BR]] [[BR]]
    8393
    84 Using the  measured signal power, along with the distance between the transmitted and receiver, we obtained a signal amplitude-distance pair. We many of these pairs using different transmitters and receivers. We then plotted these items on a graph and found the exponential fit for the graph, as show below
     94
    8595
    8696[[BR]] [[BR]]
    8797{{{
    8898#!html
    89 <center>
    90 <table cellpadding=5 width=10%>
     99<table cellpadding=50 width=120%>
    91100  <tr>
    92     <td><center><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/SNR%20vs%20Dist.png" height=400>
    93     </center></td>
     101    <td><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/SNR%20vs%20Dist.png" height=400>
     102    </td>
     103    <td> Using the  measured signal power, along with the distance between the transmitted and receiver, we obtained a signal amplitude-distance pair. We many of these pairs using different transmitters and receivers. We then plotted these items on a graph and found the exponential fit for the graph, as show below
    94104  </tr>
    95105  <tr>
    96     <td><center><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/SNR%20fit.png" height=200>
    97   </center></td>
     106    <td><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/SNR%20fit.png" height=200>
     107  </td>
    98108  </tr>
    99109  <tr>
    … …  
    102112  </tr>
    103113</table>
    104 </center>
    105114
    106115}}}