IWR1443BOOST: ROS demo intensity units

Hi,

I've been running the existing ROS demo for IWR1443. I've seen that apart from the XYZ positions of the detected objects, another field called "Intensity" is outputted. I was wondering if you could proportionate more information about how is this intensity parameter calculated and in what unit is it expressed. I've figured it is calculated in the DataHandlerClass.cpp file in the following way: [10 * log10(mmwData.objOut.peakVal + 1)]. However, I haven't been able to find what mmwData.objOut.peakVal is exactly and why there is the "+1" inside the logarithm.

Thanks!