Changes between Version 13 and Version 14 of WARPLab/Examples/8x2Array


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Timestamp:
May 14, 2013, 9:41:10 AM (11 years ago)
Author:
chunter
Comment:

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  • WARPLab/Examples/8x2Array

    v13 v14  
    1919
    2020== Setup ==
    21 [[Image(8x2_overview.jpg,width=800)]]
     21[[Image(8x2_overview.jpg,width=650)]]
    2222
    2323To run this example, you must set up your experiment as follows:
    … …  
    3636
    3737[[Image(8x2_cable_macro.jpg,width=800)]]
    38 [[Image(8x2_cable_micro.jpg,width=800)]]
     38[[Image(8x2_cable_micro.jpg,width=650)]]
    3939
    4040Once the hardware is connected and programmed you can run the example m code: [source:/ResearchApps/PHY/WARPLAB/WARPLab7/M_Code_Examples/wl_example_8x2_array.m wl_example_8x2_array.m].
    … …  
    5050When you run the example script, it will produce a plot that looks like this
    5151
    52 [[Image(8x2_result.png,width=800)]]
     52[[Image(8x2_result.png,width=700)]]
    5353
    5454The top-left subplot shows the real part of the received waveform through interface RFA on the board. The top-right subplot shows the real part of the received waveform through interface RFB. The two plots below those show the magnitudes of the signals after FFTs are taken, allowing us to see the 8 different 1 MHz-wide noise signals that were transmitted. Note that the heights (magnitudes) of each of these 8 signals are different due to frequency selective fading. If you change [source:/ResearchApps/PHY/WARPLAB/WARPLab7/M_Code_Examples/wl_example_8x2_array.m#L15 line 15 of wl_example_8x2_array.m] to "true," then the script will loop and repeatedly transmit, receive, and produce plots until any key is pressed on the keyboard of the host PC that is running MATLAB. While it is running, you can move antennas around and walk through the room for an interesting animated visualization of frequency selective fading.