Accuracy of an inertial measurement unit

Details Accuracy of an inertial measurement unit Accuracy of an inertial measurement unit

1999-08-30

2000-10-10

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

244165, 244 31, 244 32, 244 79, 244 80, 33523, 33321, G06F16500, F41G 700

Patent

active

061310689

ABSTRACT:
A missile guidance system employs a strap down inertial measurement unit with a separate accelerometer and star sensor that are moved for preflight accelerometer initialization. During flight, light is directed on the accelerometer and inertial measurement unit to produce on the star sensor images of the light source, the accelerometer and the inertial measurement unit. The location of these images, which manifest the acceleration and position of the inertial measurement unit relative to the vehicle, are used to improve the accuracy of the inertial measurement unit data for vehicle guidance.

REFERENCES:
patent: 4495850 (1985-01-01), White
patent: 5184304 (1993-02-01), Huddle
patent: 5331578 (1994-07-01), Stieler
patent: 5442560 (1995-08-01), Kau

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