船の運動の統計的特性と制御 (自動化特集号)

概要

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Since a ship navigates under a strong noise sources due to the wind and wave, it becomes unreasonable to analyse the ship's motion without considering the effects of them. Therefore, it admits of no doubt that a stochastic approach will play a central role in order to analyse and control such a system with a strong noise.<BR>In this technical report, the author discusses the recent topics on the statistical analysis and the control problem of the ships' motions using the minimum AIC procedure proposed by Dr. Akaike. The AIC (Akaike's Information Criterion) is the quantity by which we can measure the information quantity contained in the designed model.<BR>The first part of the report introduces the concept of the AIC and a stochastic autoregressive (AR) model fitting procedure using it and discusses an optimal controlling of the system using the determined AR model.<BR>Next, as the significant application examples of the fitting procedure to the actual ship, the results of the sea tests of an entirely new autopilot system which the author has developed using the procedure, are reported.<BR>Last, the application of this procedure to the governor design in the marine engine is also briefly discussed.
公益社団法人日本マリンエンジニアリング学会の論文