IWR1843: MRR例程RX端口的校准参数如何得到和如何配置

chun liu

Part Number: IWR1843

我们测试了radar_toolbox_1_00_01_07里面medium_range_radar的demo，发现以下问题：

1、dss_main.c文件里面的void rxGainPhaseParam_Init(MmwDemo_DSS_DataPathObj* obj)函数可以配置接收通道的校准参数，里面有MRR和USRR的校准参数，这些校准参数是如何得到的？

void rxGainPhaseParam_Init(MmwDemo_DSS_DataPathObj* obj)
{
int32_t indx = 0;
if (obj->processingPath == MAX_VEL_ENH_PROCESSING)
{

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++;
}
else if (obj->processingPath == POINT_CLOUD_PROCESSING)
{

obj->rxChPhaseComp[indx].imag = 21646;
obj->rxChPhaseComp[indx].real = 7035;indx++;

obj->rxChPhaseComp[indx].imag = 21172;
obj->rxChPhaseComp[indx].real = 18420;indx++;

obj->rxChPhaseComp[indx].imag = 15490;
obj->rxChPhaseComp[indx].real = 21080;indx++;

obj->rxChPhaseComp[indx].imag = -3905;
obj->rxChPhaseComp[indx].real = 25130;indx++;

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

obj->rxChPhaseComp[indx].imag = -7985;
obj->rxChPhaseComp[indx].real = 18443;indx++;

obj->rxChPhaseComp[indx].imag = -10962;
obj->rxChPhaseComp[indx].real = 15291;indx++;

obj->rxChPhaseComp[indx].imag =-17653;
obj->rxChPhaseComp[indx].real = 3133;indx++;

obj->rxChPhaseComp[indx].imag = 386;
obj->rxChPhaseComp[indx].real = -17208;indx++;

obj->rxChPhaseComp[indx].imag = 8587;
obj->rxChPhaseComp[indx].real = -18744;indx++;

obj->rxChPhaseComp[indx].imag = 11857;
obj->rxChPhaseComp[indx].real = -15772;indx++;

obj->rxChPhaseComp[indx].imag = 18493;
obj->rxChPhaseComp[indx].real = -2907;indx++;

}
}

2、用sdk的out of box例程的校准配置文件profile_calibration.cfg可以得到compRangeBiasAndRxChanPhase 0.1827784 -0.32687 -0.51871 -0.60535 -0.55856 -0.42178 -0.75253 -0.20648 -0.68051 0.28970 -0.67130 0.15488 -0.96405 0.44168 -0.89716 0.52817 -0.63138 0.35147 -0.64502 0.24319 -0.94034 0.50223 -0.85928 0.57156 -0.57538 这些数据，要如何转换成Q15格式的数据配置到MRR例程的校准函数里面？

3、MRR是1TX/4RX工作的，profile_calibration.cfg配置文件是3TX、4RX的，可否配置成1TX、4RX，然后输出校准参数？

sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 7 0
adcCfg 2 1
adcbufCfg -1 0 1 1 1
lowPower 0 0
profileCfg 0 77 7 3 39 0 0 100 1 256 7200 0 0 30
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 4
chirpCfg 2 2 0 0 0 0 0 2
frameCfg 0 2 32 0 500 1 0
guiMonitor -1 1 1 1 1 0 1
cfarCfg -1 0 2 8 4 3 0 15.0 0
cfarCfg -1 1 0 4 2 3 1 15.0 0
multiObjBeamForming -1 1 0.5
calibDcRangeSig -1 0 -5 8 256
clutterRemoval -1 0