Title :
Applying the wavelet transform to derive sea surface elevation from acceleration signals
Author :
Chuang, Laurence Zsu-Hsin ; Wu, Li-Chung ; Lin, Ching-Ruei ; Kao, Chia Chuen
Author_Institution :
Inst. of Ocean Technol. & Marine Affairs, Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
The current work develops a procedure for carrying out the theories of continuous wavelet transform and inverse wavelet transform to derive sea surface level from acceleration records. Wave signals were applied to verify the practicability of the wavelet algorithm. It is revealed the accuracy of sea surface elevation is influenced by the margins of wave signals, noise in the low frequency band, and the mother wavelet function. After discussing cases of regular and irregular wave signals, this investigation confirms the method for deriving sea surface elevation from the acceleration signal using the wavelet transform.
Keywords :
geophysical signal processing; ocean waves; oceanographic techniques; wavelet transforms; acceleration signals; continuous wavelet transform; inverse wavelet transform; ocean waves; sea surface elevation; wave signals; wavelet algorithm; Acceleration; Accelerometers; Cities and towns; Continuous wavelet transforms; Ocean waves; Sea measurements; Sea surface; Surface topography; Surface waves; Wavelet transforms;
Conference_Titel :
OCEANS 2009, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges
Conference_Location :
Biloxi, MS
Print_ISBN :
978-1-4244-4960-6
Electronic_ISBN :
978-0-933957-38-1
