Method and apparatus for protecting a ship from missiles with two-color infra-red target seeking heads

摘要

A method of protecting a ship from missiles with two-color infra-red target seeking heads and which is characterized in that an interference transmitter disposed on the ship sends out exclusively short wave infra-red rays, at least intermittently, the strength of radiation from the interference transmitter being so adjusted that the ratio of short wave to medium wave infra-red radiation is so shifted that the ship cannot be reliably recognized as a target by the two-color infra-red target seeking head.