How are antenna arrays synchronized for direction finding/localisation?
For example, if the processing unit is located closer to one antenna then another, it will see the signal from the closer antenna first even if it hits them at the same time(voltage propagation speed within the line is at most the speed of light if not significantly less). How is this dealt with? Do you take into account the antenna transmission line lengths and attempt to fix it in software?
Alternatively, suppose you have two receivers each collecting data at their specific antenna locations - how can you synchronize the timing between them? Even if they are locally synchronized then moved, oscillator drift will cause timing mismatches. How is this problem solved?