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Keywords: fast Fourier transforms
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Journal Articles
Publisher: ASME
Article Type: Structures and Safety Reliability
J. Offshore Mech. Arct. Eng. August 2012, 134(3): 031601.
Published Online: February 2, 2012
... response can be derived. After having calculated the encountering wave trains at the vessel’s main frame, they are transferred into frequency-domain using Fast Fourier Transformation. As the encounter frequencies ω e within a sea state spectrum are related to the cruising speed (Eq. 1...
Journal Articles
Publisher: ASME
Article Type: Safety And Reliability
J. Offshore Mech. Arct. Eng. May 2010, 132(2): 021601.
Published Online: March 1, 2010
... condition so as to switch to the appropriate controller. The WPF is assumed to be the same as the peak frequency of the vessel’s response spectrum at wave frequency estimated by fast Fourier transform (FFT) of the measured position and heading. Using a short window width leads to error in the WPF estimation...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. November 2007, 129(4): 327–334.
Published Online: May 2, 2007
...Xiang Yuan Zheng; Torgeir Moan; Ser Tong Quek The one-dimensional fast Fourier transform (FFT) has been applied extensively to simulate Gaussian random wave elevations and water particle kinematics. The actual sea elevations/kinematics exhibit non-Gaussian characteristics that can be represented...