Accession Number : AD0909490

Title :   A Discussion of Measures of Fighter Aircraft Inertial Navigation System Position Accuracy and a Suggestion for Field Maintenance Rejection Criteria.

Descriptive Note : Final rept.,

Corporate Author : AEROSPACE GUIDANCE AND METROLOGY CENTER NEWARK AFS OH

Personal Author(s) : Genet, Russell M.

Report Date : 05 MAY 1971

Pagination or Media Count : 30

Abstract : The evolution and uses of different measures of the position accuracies of fighter aircraft inertial navigation systems are discussed from an elementary statistical viewpoint. This statistical viewpoint is then applied to the problem of determining when an inertial navigation system should be rejected by the field user and sent to a central depot for repair. The case where an inertial navigation system is improperly operating due to a field adjustable gyro bias is also covered, and a statistical method for separating these cases from 'incurable drifter' cases requiring depot maintenance is given. Finally, a new definition for specifying the accuracy of aircraft inertial navigation systems is given that may promote better understanding between guidance system users and developers. (Author)

Descriptors :   *INERTIAL NAVIGATION, *MAINTENANCE, TERMINAL GUIDANCE, TEST METHODS, POSITION FINDING, ACCURACY, ACCEPTABILITY, MISS DISTANCE, CIRCULAR ERROR PROBABLE, GYROSCOPES, JET FIGHTERS, COSTS, ECONOMICS.

Subject Categories : Air Navigation and Guidance
      Attack and Fighter Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE