Changes between Version 5 and Version 6 of WARPLab/AGC


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Timestamp:
Nov 9, 2015, 11:54:18 AM (8 years ago)
Author:
chunter
Comment:

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  • WARPLab/AGC

    v5 v6  
    2929== AGC Characterization ==
    3030
     31To characterize the AGC, we use the [http://microelectronics.aeroflex.com/item/able-attenuators-mmic-switched-digital-attenuators/tal-switched-programmable-attenuator-sma-0-2-6-ghz/4205-95-5-1 Aeroflex 4205] programmable attenuator in conjunction with 20 dB of fixed attenuation to sweep a 90 dB of receive powers. At each receive power, we let the AGC choose gains and plot the resulting I/Q magnitude in WARPLab.
     32
    3133||  [[Image(agc_calib.png,width=800)]][[BR]]AGC Characterization  ||
     34
     35The above image shows that the AGC performs adequately over the entire 90 dB range, roughly keeping the resulting I/Q magnitude flat at the ADCs.