Any document illustrate how the AoA works in TDM environment ?
Since it is TDM, the target object can be moved if it is not sampling at same time, thus introduce a phase shift also du to movement.
How that can be compensated ?
e.g. in ISK, we get 8 virtual horizontal antennas and 4 virtual vertical antenna. as :
9 10 11 12
- - O O O O - -
X X X X X X X X
1 2 3 4 5 6 7 8
We have 3 groups, and 12 virtual antennas. Those 3 groups (1-4, 4-8, 9-12) are TDM, so sampled at different time.
How those 8 virtual antenna can be used to calc the AoA, since they are sampled at different time (1-4 and 5-8 are different).
And how the elevation calculated ? Which antenna Rx to use ? (3-6 and 9-12 ?) Again how the time different between virtual antenna compensated ?