How dispersed swarm aircraft calculate exact hostile radio transmitter coordinates using microsecond cross-correlation.
A single aircraft detecting a hostile radio transmission can only estimate rough bearing, leaving range and exact position uncertain.
By synchronizing nanosecond clock references across four dispersed swarm drones using GPS or inter-drone optical pulses, the swarm measures the slight arrival time differences of the hostile radio wave, instantly calculating the transmitter's 3D coordinates with sub-meter accuracy.
Because TDOA is completely passive—emitting zero radar waves—the target radio operator has no warning that their position has been compromised until friendly forces arrive.