Two Motion Strategies.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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The relative effectiveness of two motion strategies to reduce a targets vulnerability to localization is analyzed. A target is a patroling submarine and the vulnerability arises because of the ability of a surveillance system to determine the submarines position from time to time. The analysis is based on the following model A target is exposed to a surveillance system periodically. The distance the target moves during an exposure is essentially zero, but the exposure is long enough so that the detection of the target by the surveillance system can occur. The target is aware of its exposures, but the exposures are unavoidable. When a target is detected by the surveillance system, the targets position is determined, but no other information is obtained. The position, which will be called a datum, determines a search region in a plane that is bounded by circle of radius U sub MXT that is centered on the datum where U sub M is the targets maximum patrol speed and t is the time since detection. A searcher is cued by the surveillance system but, due to various causes, a delay time late occurs before the start of a search.
- Statistics and Probability
- Submarine Engineering