Full Title

Direction control systems for self-propelled missiles (flight control B64C, G05D1/00 ; self-propelled or guided missiles having direction control systems only installed aboard F42B15/01; rocket torpedoes F42B17/00; marine torpedoes or sea-mines having self-propulsion means F42B19/00; locating by use of radio or other waves G01S; computing aspects G06) > based on continuous observation of target position > Beam riding guidance systems (conical-scan beam beacons therefor G01S1/42) > Optical guidance systems