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AWR1843BOOST: Some question about rxGainPhaseParam_Init

Gmsy Bryant
Expert 1650 points
Part Number: AWR1843BOOST
Other Parts Discussed in Thread: AWR1843

Hello,ti's rngineers

    I read the AWR1843 DEMO7(MRR),i find function about rxGainPhaseParam_Init.See as follow:

    int32_t indx = 0;

    obj->rxChPhaseComp[indx].imag = 5863;
    obj->rxChPhaseComp[indx].real = 19158;
    indx++;

    obj->rxChPhaseComp[indx].imag = 2858;
    obj->rxChPhaseComp[indx].real = 23451;
    indx++;

    obj->rxChPhaseComp[indx].imag = 4569;
    obj->rxChPhaseComp[indx].real = 22093;
    indx++;

    obj->rxChPhaseComp[indx].imag = 0;
    obj->rxChPhaseComp[indx].real = 16399;
    indx++;

I use 1tx and 4rx,so i only calculate four compensating factor.Their calculation method does not follow the following formula:

Whether the factors highlighted in red above have been multiplied by the relevant magnification?

BR

Bryant

  • 0
    TI__Genius 15046 points

    Hi Bryant,

    Not sure for this lab, but for the OOB demo, these values used aren't taken from formulae but rather from the device itself. Have a look at file:///C:/ti/mmwave_sdk_03_05_00_04/packages/ti/demo/xwr18xx/mmw/docs/doxygen/html/index.html#Calibration_section

    Regards,

    Aayush