00 0F range index ?meter
00 00
0C 49 peak value
00 E2 x(/512)
00 B3 y(/512)
FF E7 z
hello,
I am not sure about the unit of these value, and I did not find the related definition in javascript document. Can you tell me how to resolve it? And also what is the peak value?
Hello,
The data structure of the detected object is as follows:
Where rangeIdx corresponds to the given objects range bin, dopplerIdx corresponds to the given objects doppler bin, and peakVal corresponds to the FFT peak value of the detected object. Objects with a stronger reflection will produce a higher peak value. These values are unit less.
The number of range bins is determined by number of ADC samples rounded up to the nearest 2 to the power value. For example, if you have 50 ADC samples, there will be 64 range bins and if you have 80 ADC samples there will be 128 range bins.
The number of doppler bins is equivalent to the number of chirps per frame / number of TX antennas.
As you can see, the only values with units are the x, y, and z coordinates, which are represented in meters. I would suggest you take a look at the doxygen document located at C:\ti\mmwave_sdk_01_00_00_05\packages\ti\demo\xwr14xx\mmw\docs\doxygen\html. Find 'index.html' in this folder and you can find more information about the data path and how objects are processed.
Regards,
Adrian
