ANALYSIS OF THE INFLUENCE OF THE SYSTEM PARAMETERS AND NOISE ON THE RECOVERY THE SPECTRAL DENSITY OF SEA WAVES

Has an overview character of the solution of the problem of sea wave parameters identification for the onboard intellectual system. The urgency of the problem is shown, the history of the solution is briefly described, in which various approaches are presented. The formulation of the problem and the problems that arise during the solving are given. A mathematical solution of the problem is given in the linear case of vessel and sea waves interaction. The article presents an analysis of model parameters and noise impact on sea waves spectral density recovery in the linear case. The sea wave parameters recovery algorithm in the linear case is based on the Khinchin theorem, the analysis of ship behavior under the influence of waves and the use of such additional information as the «climatic spectrum». The analysis is carried out for different types of ships and the two main types of pitching. The possibilities of spectral density recovery with the proposed algorithm are presented based on the analysis of model parameters and noise impact.

Authors: I. V. Busko

Direction: Informatics and Computer Technologies

Keywords: Sea wave spectral density, climatic spectrum, parameters identification, Khinchin theorem

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