AWR1443BOOST: How to interpret the mmwave.js code

Hi,

I have looked through the mmWave.js code. I want to know what is happening here:

Case 1: Range -> (Converting RangeIdx to range)

rangeIdx = math.add(x[0], math.multiply(x[1], 256));
var range = math.map(rangeIdx, function (value) {
return value * Params.dataPath[subFrameNum].rangeIdxToMeters;
});

Case 1: Doppler - > (Converting DopplerIdx to Doppler)

dopplerIdx = math.add(x[2], math.multiply(x[3], 256));

var doppler = math.map(dopplerIdx, function (value, idx, ary) {
return value * Params.dataPath[subFrameNum].dopplerResolutionMps;
});