The Utility of Elliptical and Circular Confidence Regions for HFDF Receivers
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
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This thesis investigates HFDF confidence region CR shape exhibited by geolocations in a search-and-rescue context. In Phase I, a Keeney-Raiffa multiattribute utility function was developed which allowed an analytical measure of preference between elliptical and equivalent- probability circular CRs. Phase II utilized a likelihood approach to establish CR shape for sample operational geolocations having multiple points of bearing intersections. For 12 sample Phase I geolocations, the elliptical CR always had higher utility than its corresponding circular CR. For accepted sample geolocations, a preference condition was developed whereby a circular CR would only be preferred over the corresponding elliptical CR if the relative percent utility difference was less than some DOD-established threshold percentage.
- Target Direction, Range and Position Finding
- Escape, Rescue and Survival