В мине можно настроить даже кратность прохождения цели. Но просто минировать просто "море" никто не будет. Очевидно, это торпеда.

А официально договорятся и о стае птиц.

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Как-то так

Ultimately, the mine is an autonomous decision-making machine that decides whether to actuate based on the information it receives from its sensors. For minelayers, as well as for those working in the field of mine countermeasures an understanding of the actuation behaviour of the mine can be enhanced by modelling.
Modern mines are figuratively disguised to decrease the search success of the mine hunters. They are able to calculate the distance to the source of the measured signature to reduce the probability of an ineffective detonation. They use a combination of new kinds of sensor technology and mine logic to detect and classify the ship class to be attacked.
Sweeping of modern sea mines requires an accurate emulation of the electromagnetic and acoustic signature of the target ship. The different components of the magnetic field must be controlled and UEP/ELFE must be kept on realistic level. Operational circumstances vary from labyrinths of archipelago and harbour entrances to open sea, emulation requirement from extremely low magnetic signature of degaussed MCM vessels to high signature of large non-degaussed commercial vessels.