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The Atlas guidance system was to be a combination of an on-board autonomous system, and a ground-based tracking and command system. This was the beginning of a philosophic controversy, which, in some areas, remains unresolved. The self-contained system finally prevailed in ballistic missile applications for obvious reasons.
In World War II, guided missiles were first developed, as part of the German V-weapons program. [2] Project Pigeon was American behaviorist B.F. Skinner's attempt to develop a pigeon-guided bomb. The first U.S. ballistic missile with a highly accurate inertial guidance system was the short-range PGM-11 Redstone. [3]
The kerb-guided system maintains a narrow track while still enabling buses to pass one another at speed. Consequently, kerb-guided track can be fitted into former double-track rail alignments without the requirement for additional land-take that might have been necessary were a disused railway to be converted into a public highway.
A wire-guided missile is a missile that is guided by signals sent to it via thin wires connected between the missile and its guidance mechanism, which is located somewhere near the launch site. As the missile flies, the wires are reeled out behind it ( command guidance ).
In the field of weaponry, terminal guidance refers to any guidance system that is primarily or solely active during the "terminal phase", just before the weapon impacts its target. The term is generally used in reference to missile guidance systems, and specifically to missiles that use more than one guidance system through the missile's flight.
A laser-guided GBU-24 (BLU-109 warhead variant) strikes its target.. Guided bombs carry a guidance system which is usually monitored and controlled from an external device. A guided bomb of a given weight must carry fewer explosives to accommodate the guidance mechanisms.
The operator watches the missile flight, and uses a signaling system to command the missile back into the straight line between operator and target (the "line of sight"). This is typically useful only for slower targets, where significant "lead" is not required. MCLOS is a subtype of command guided systems.
Television guidance (TGM) is a type of missile guidance system using a television camera in the missile or glide bomb that sends its signal back to the launch platform. There, a weapons officer or bomb aimer watches the image on a television screen and sends corrections to the missile, typically over a radio control link.