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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
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On Nautical Observation Errors Evaluation
1 Gdynia Maritime University, Gdynia, Poland
ABSTRACT: Mathematical Theory of Evidence (MTE) enables upgrading models and solving crucial problems in many disciplines. MTE delivers new unique opportunity once one engages possibilistic concept. Since fuzziness is widely perceived as something that enables encoding knowledge thus models build upon fuzzy platforms accepts ones skill within given field. At the same time evidence combining scheme is a mechanism enabling enrichment initial data informative context. Therefore it can be exploited in many cases where uncertainty and lack of precision prevail. In nautical applications, for example, it can be used in order to handle data feature systematic and random deflections. Theoretical background was discussed and computer application was successfully implemented in order to cope with erroneous and uncertain data. Output of the application resulted in making a fix and a posteriori evaluating its quality. It was also proven that it can be useful for calibrating measurement appliances. Unique feature of the combination scheme proven by the author in his previous paper, enables identifying measurement systematic deflection. Based on the theorem the paper aims at further exploration of practical aspects of the problem. It concentrates on reduction of hypothesis frame reduction and random along with systematic errors identifications.
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Citation note:
Filipowicz W.: On Nautical Observation Errors Evaluation. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 9, No. 4, doi:10.12716/1001.09.04.11, pp. 545-550, 2015

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