Navigation System Integrity Monitoring Using Redundant Measurements
- 1 December 1988
- journal article
- research article
- Published by Institute of Navigation in NAVIGATION: Journal of the Institute of Navigation
- Vol. 35 (4) , 483-501
- https://doi.org/10.1002/j.2161-4296.1988.tb00975.x
Abstract
The advantages of a navigation system that can monitor its own integrity are obvious. Integrity monitoring requires that the navigation system detect faulty measurement sources before they corrupt the outputs. This paper describes a parity approach to measurement error detection when redundant measurements are available. The general form of the detector operating characteristic (DOC) is developed. This equation relates the probability of missed detection to the probability of false alarm, the measurement observation matrix, and the ratio of the detectable bias shift to the standard deviation of the measurement noise. Two applications are presented: skewed axis strapdown inertial navigation systems, where DOCs are used to compare the integrity monitoring capabilities of various redundant sensor strapdown system configurations; and GPS navigation sets, where DOCs are used to discuss GPS integrity monitoring for meeting non-precision approach requirements. A fault identification algorithm is also presented.Keywords
This publication has 4 references indexed in Scilit:
- Autonomous GPS Integrity Monitoring Using the Pseudorange ResidualNAVIGATION: Journal of the Institute of Navigation, 1988
- Civil Aviation Integrity Requirements for the Global Positioning SystemNAVIGATION: Journal of the Institute of Navigation, 1988
- Redundancy management of skewed and dispersed inertial sensorsPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1981
- Optimum orientation and accuracy of redundant sensor arraysPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1971