Abstract
ABSTRACT The problem of determining coordinates for the requirements of maritime navigation, considered only in terms of measurement error, seems to be solved on a global scale. In view of the above, the operational characteristics of radio navigation systems such as availability are equally important. This paper analyses the problem of AIS binary transmission availability. An attempt was made to assess the availability of the AIS service transmission channel based on dynamic measurements. For this purpose, the theory of Markov processes defined on a discrete state space was applied. The Criterion of state system availability was adopted, stochastic matrix of probabilities of transitions between the states of the availability and accessibility of states limit the probability of AIS. In this paper, the author proposed a model for the assessment of AIS Service availability. To meet the objective of the research, recorded data derived from the Southern Baltic and Danish Straits Base Stations were used.
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