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An inertial navigation system (INS; also inertial guidance system, inertial instrument) is a navigation device that uses motion sensors (accelerometers), rotation sensors and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the ...
Astro-inertial guidance, or stellar-inertial guidance, is a sensor fusion-information fusion of inertial guidance and celestial navigation. It is usually employed on submarine-launched ballistic missiles .
The M1156 Precision Guidance Kit (PGK), formerly XM1156, is a U.S. Army-designed precision guidance system to turn existing 155 mm artillery shells into smart weapons. [2]
The Joint Direct Attack Munition (JDAM) is a guidance kit that converts unguided bombs, or "dumb bombs", into all-weather precision-guided munitions (PGMs). JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning System (GPS) receiver, giving them a published range of up to 15 nautical miles (28 km).
The RIM-156 Standard Block IV, is a version that has been developed for the Aegis Combat System it has a smaller compact sized booster stage for firing from the Mk41 Vertical Launching System. Like the earlier RIM-67B it employs inertial/command guidance with terminal semi-active homing. Ticonderoga-class cruisers (VLS units only)
A guidance system is usually part of a Guidance, navigation and control system, whereas navigation refers to the systems necessary to calculate the current position and orientation based on sensor data like those from compasses, GPS receivers, Loran-C, star trackers, inertial measurement units, altimeters, etc.
Minuteman III guidance ring containing the D37D computer. Minuteman III guidance ring on display at the National Air and Space Museum. The D37D Minuteman III flight computer was initially supplied with the LGM-30G missile, as part of the NS-20 navigation system. The NS-20 D37D flight computer is a miniaturized general purpose (serial ...
An inertial guidance unit is incorporated into the autopilot to compensate for crosswind and other factors encountered in flight. The original FGM-172A was an overfly top attack (OTA) type and used a downward-facing dual laser and magnetic sensor to detect a target and trigger detonation of the warhead.