Fault tolerant highly reliable inertial navigation system
Abstract
This paper describes a development of failure detection and isolation (FDI) strategies for highly reliable inertial navigation systems. FDI strategies are developed based on the generalized likelihood ratio test (GLRT). A relationship between detection threshold and false alarm rate is developed in terms of the sensor parameters. A new method for correct isolation of failed sensors is presented. Evaluation of FDI performance parameters, such as false alarm rate, wrong isolation probability, and correct isolation probability, are presented. Finally a fault recovery scheme capable of correcting false isolation of good sensors is presented.
- Publication:
-
PLANS 1986 - Position Location and Navigation Symposium
- Pub Date:
- 1986
- Bibcode:
- 1986pln..symp..456J
- Keywords:
-
- Fault Tolerance;
- Inertial Navigation;
- Spacecraft Reliability;
- Strapdown Inertial Guidance;
- Failure Analysis;
- False Alarms;
- Likelihood Ratio;
- Reliability Engineering;
- Space Communications, Spacecraft Communications, Command and Tracking