Hello,
Do you have any detailed document about doppler shift compensation?
I checked doxygen included in SDK2.1 but I could not understand well.
I am understanding only the purpose of the compensation that in case of TDM-MIMO, it is needed to compensate phase difference between tx1 and tx2 to estimate angle correctly because target is moving.
But I can not understand followings well.
According to the doxygen, Φdop is 2π x idop/N.
If idop is detected doppler bin index, I suppose the above Φdop is the phase difference between tx1 and tx2.
Why Φdop is between tx1 and tx1?
For example, if 128 chirps are transmited from both tx1 and tx2 alternatively, size of doppler fft is 256.
After doppler FFT, let's assume one peak ω (=2π x idop/256) appears, because it is phase difference per sample, which means between tx1 and tx2,
the phase difference between tx1 and tx2 is ω(=2π x idop/256) , correct? Why Φdop means between tx1 and tx1 (same antenna)?
