Study on Spectral Analysis of Non-linear and Non-stationary Ship Motion Data

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In this study, the real-time algorithm of higher order spectral analysis is proposed in order to investigate the non-linear and non-stationary ship motions. The algorithm is based on the time-varying vector auto-regressive modeling and can be considered as an extension of the instantaneous power spectral analysis. The analyzed results of the full scale ship motion data were presented at the domestic and international conferences and were highly regarded. Therefore, it can be recognized that the objectives of this study have been achieved.