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Space Integrated GPS/INS (SIGI) is a strapdown Inertial Navigation Unit (INU) developed and built by Honeywell International to control and stabilize spacecraft during flight. SIGI has integrated global positioning and inertial navigation technology to provide three navigation solutions : Pure inertial, GPS-only and blended GPS/INS.
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 ...
Honeywell supported the "long and painful" development process, but was rewarded by the 1970s. [25] Honeywell also developed the Laser Inertial Navigation system. Both RLG and the Laser Inertial System help navigation and automatic flight control systems measure altitude, position, velocity and rotation. By 1991, 45,000 RLG devices were sold.
Various organizations worldwide subsequently developed ring-laser technology further. Many tens of thousands of RLGs are operating in inertial navigation systems and have established high accuracy, with better than 0.01°/hour bias uncertainty, and mean time between failures in excess of 60,000 hours. Schematic representation of a ring laser setup.
An Air Data Inertial Reference Unit (ADIRU) is a key component of the integrated Air Data Inertial Reference System (ADIRS), which supplies air data (airspeed, angle of attack and altitude) and inertial reference (position and altitude) information to the pilots' electronic flight instrument system displays as well as other systems on the aircraft such as the engines, autopilot, aircraft ...
PIGA accelerometers mounted in the AIRS (Advanced Inertial Reference Sphere) are part of the most accurate inertial navigation (INS) developed for the Peacekeeper missile. The INS drift rates are less than 1.5 x 10 −5 degrees per hour of operation, about 8.5 m per hour with the overall accuracy of the missile affected more by defects in the ...
Miniature inertial measurement unit (MIMU) is an inertial measurement unit (IMU) developed and built by Honeywell International [2] to control and stabilize spacecraft during mission operations. MIMUs can also be configured to perform as an inertial reference unit (IRU).
A Canadian Marconi Doppler-radar navigation system. A Litton or Honeywell inertial guidance system (INS). A computerized moving-map display. [6] A radar-warning receiver (RWR) and chaff-flare dispensers. The FLIR and TFR were mounted on a distinctive "chin" mount. The HH-53H could be fitted with 27 seats for troops or 14 litters.