AWR1443: What is the relationship between Q format and range resolution?

As described in doxygen documentation (the doxygen of 14xx refers to 16xx for this information as they are identical), xyzQformat is reported in the list descriptor (MmwDemo_output_message_dataObjDescr_t) to allow computation of x,y,z in meters (in floating point) by the receiver of TLV [x,y,z in float meters = TLV x,y,z/2^xyzQformat].

The calculation of xyzQformat from range resolution and its usage to compute the x,y,z in the TLV can be found by navigating the code to locate the following lines, this should give you the mapping:

[in main.c]
            dataPathObj->xyzOutputQFormat    = (uint32_t) ceil(log10(16./fabs(dataPathObj->rangeResolution))/log10(2));

...
    /* Send detected Objects */
    if ((pGuiMonSel->detectedObjects == 1) && (obj->numObjOut > 0))
    {
        MmwDemo_output_message_dataObjDescr descr;

        UART_writePolling (uartHandle,
                           (uint8_t*)&tl[tlvIdx],
                           sizeof(MmwDemo_output_message_tl));
        /* Send objects descriptor */
        descr.numDetetedObj = (uint16_t) obj->numObjOut;
        descr.xyzQFormat = (uint16_t) obj->xyzOutputQFormat;
..

[in post_processing.c]

    uint32_t xyzOutputQFormat = obj->xyzOutputQFormat;
#define ONE_QFORMAT (1 << xyzOutputQFormat)

....
    if(x < 0)
    {
        objOut[objOutIndx].x = (int16_t) (x * ONE_QFORMAT - 0.5);
    }
    else
    {
        objOut[objOutIndx].x = (int16_t) (x * ONE_QFORMAT + 0.5);
    }
    if(y < 0)
    {
        objOut[objOutIndx].y = (int16_t) (y * ONE_QFORMAT - 0.5);
    }
    else
    {
        objOut[objOutIndx].y = (int16_t) (y * ONE_QFORMAT + 0.5);
    }
    if(z < 0)
    {
        objOut[objOutIndx].z = (int16_t) (z * ONE_QFORMAT - 0.5);
    }
    else
    {
        objOut[objOutIndx].z = (int16_t) (z * ONE_QFORMAT + 0.5);
    }