TY - GEN
T1 - Accuracy improvement of directional spectrum estimation with submerged ultrasonic Doppler-type directional wave meter
AU - Mitsui, Masao
AU - Hashimoto, Noriaki
AU - Kawai, Hiroyasu
AU - Yokota, Masaki
AU - Kitamura, Yasushi
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - An upgraded submerged Doppler-type directional wave meter can measure 10 wave quantities related to directional wave motions, i.e. water surface elevation, 3 components of water particle velocities at each layer of 3 different water depth ranging from shallow to deep. In this study, accuracy of directional spectrum estimation is comprehensively investigated for various cases where directional spectra are estimated with various sets of different number of wave quantities. As a result, accuracy improvement is generally confirmed in various wave conditions when all the quantities are applied to the estimations, compared with the cases where conventional 4 wave quantities are applied to the estimations. Moreover, the advantage of BDM with the improved computation method was confirmed.
AB - An upgraded submerged Doppler-type directional wave meter can measure 10 wave quantities related to directional wave motions, i.e. water surface elevation, 3 components of water particle velocities at each layer of 3 different water depth ranging from shallow to deep. In this study, accuracy of directional spectrum estimation is comprehensively investigated for various cases where directional spectra are estimated with various sets of different number of wave quantities. As a result, accuracy improvement is generally confirmed in various wave conditions when all the quantities are applied to the estimations, compared with the cases where conventional 4 wave quantities are applied to the estimations. Moreover, the advantage of BDM with the improved computation method was confirmed.
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M3 - Conference contribution
AN - SCOPUS:80052755075
SN - 9781880653968
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 380
EP - 386
BT - Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011
T2 - 21st International Offshore and Polar Engineering Conference, ISOPE-2011
Y2 - 19 June 2011 through 24 June 2011
ER -