Adaptive corrective alignment for a carouseling strapdown INS
Abstract
A corrective alignment technique is developed for a carouseling strapdown INS. The implementation corrects the body to geographic coordinate frame transformation for angular disturbances. The carousel induced modulation enables a Kalman filter to optimally separate IMU attitude from the instrument error sources. A MLE of the angular disturbance spectral density is made in order that optimal weighting can be appied to the angular velocity observation process relative to the corrective alignment plant process.
- Publication:
-
IN: 1984 American Control Conference
- Pub Date:
- 1984
- Bibcode:
- 1984amco....3.1856J
- Keywords:
-
- Accelerometers;
- Alignment;
- Gyroscopes;
- Inertial Navigation;
- Kalman Filters;
- Strapdown Inertial Guidance;
- Covariance;
- Degrees Of Freedom;
- Matrices (Mathematics);
- Noise Measurement;
- Space Communications, Spacecraft Communications, Command and Tracking