radio-inertial guidance system

radio-inertial guidance system

[¦rād·ē·ō i¦nər·shəl ′gīd·əns ‚sis·təm]
(engineering)
A command type of missile guidance system consisting essentially of a radar tracking unit; a computer that accepts missile position and velocity information from the tracking system and furnishes to the command link appropriate signals to steer the missile; the command link, which consists of a transmitter on the ground and an antenna and receiver on the missile; and an inertial system for partial guidance in case of radio guidance failure.