Changes between Version 93 and Version 94 of Other/Summer/2015/aSDR1


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Timestamp:
Aug 16, 2015, 11:05:22 PM (9 years ago)
Author:
krajput96
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  • Other/Summer/2015/aSDR1

    v93 v94  
    139139<br>
    140140<br>
    141 <font color="red"><b>Experiment two:</b></font> I/Q Samples
     141<font color="red"><b>Experiment two:</b></font> I/Q Samples<br><br>
    142142<table cellpadding=5 width=10%>
    143143IQ samples are often used in RF applications. In signal processing, I/Q samples are the real and imaginary components of a transmitted signal. The in-phase component is the "i" and the out of phase component, shifted by 90 degrees, is "q". These samples were used to calculate the power of the signal and figure out the relationship between signal power and distance.
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    164164{{{
    165165#!html
    166 <font color="red"><b> Experiment Three: </b></font> Calculating power <br>
     166<font color="red"><b> Experiment Three: </b></font> Calculating power <br><br>
    167167Calculating signal amplitude and power is the next step in the process. The IQ samples, as mentioned above, gives the real and imaginary amplitude (y-axis) as it is related to time. Therefore, using the real amplitude on the x axis and the imaginary amplitude on the y-axis would result in the amplitude of the signal at a given time (hypotenuse). We can also calculate power from the similar calculation.
    168168<table cellpadding=5 width=10%>
    … …  
    194194{{{
    195195#!html
    196 
     196<br>
    197197<font color="red"><b> Experiment four: </b></font>Relating Signal to noise ratio to distance
    198198<br>